diff --git a/editions/tiddlywiki-surveys/tiddlers/app/palettes - Naporitan.tid b/editions/tiddlywiki-surveys/tiddlers/app/palettes - Naporitan.tid
index a4ae2af2e..8302b4994 100644
--- a/editions/tiddlywiki-surveys/tiddlers/app/palettes - Naporitan.tid	
+++ b/editions/tiddlywiki-surveys/tiddlers/app/palettes - Naporitan.tid	
@@ -73,7 +73,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: #990402
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -97,7 +97,7 @@ tiddler-controls-foreground: #FFDE2D
 tiddler-editor-background: #eef5c8
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #DCE3B9
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/BeginningOfSummer.tid b/plugins/tiddlywiki/palettes-2026/new/BeginningOfSummer.tid
index 39d77f8c4..7504851a8 100644
--- a/plugins/tiddlywiki/palettes-2026/new/BeginningOfSummer.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/BeginningOfSummer.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour background>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour primary>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #3EAB78
 tiddler-editor-background: #c6f4ed
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #B2DCD5
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/CountryGirl.tid b/plugins/tiddlywiki/palettes-2026/new/CountryGirl.tid
index 14b9b82fd..244f4978a 100644
--- a/plugins/tiddlywiki/palettes-2026/new/CountryGirl.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/CountryGirl.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour foreground>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: <<colour primary>>
 tiddler-editor-background: <<colour background>>
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #C5C4BF
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour page-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/DrinkBeer.tid b/plugins/tiddlywiki/palettes-2026/new/DrinkBeer.tid
index 71c510812..79d04bbfa 100644
--- a/plugins/tiddlywiki/palettes-2026/new/DrinkBeer.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/DrinkBeer.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour primary>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour tiddler-background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #fccb63
 tiddler-editor-background: <<colour background>>
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #E5D3AC
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/EarthyTranquility.tid b/plugins/tiddlywiki/palettes-2026/new/EarthyTranquility.tid
index d842f1d13..9eedc86b1 100644
--- a/plugins/tiddlywiki/palettes-2026/new/EarthyTranquility.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/EarthyTranquility.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border-selected>>
 sidebar-tab-foreground-selected: <<colour background>>
 sidebar-tab-foreground: <<colour page-background>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour foreground>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #A18A6E
 tiddler-editor-background: #545454
 tiddler-editor-border-image: #FFFFFF
 tiddler-editor-border: #707173
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/Emerald.tid b/plugins/tiddlywiki/palettes-2026/new/Emerald.tid
index ade59f95c..d45695958 100644
--- a/plugins/tiddlywiki/palettes-2026/new/Emerald.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/Emerald.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border-selected>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: #C8BFB5
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: <<colour primary>>
 tiddler-editor-background: #333d37
 tiddler-editor-border-image: #FFFFFF
 tiddler-editor-border: #47504B
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/Evergreen.tid b/plugins/tiddlywiki/palettes-2026/new/Evergreen.tid
index 574451d52..0c4bb70aa 100644
--- a/plugins/tiddlywiki/palettes-2026/new/Evergreen.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/Evergreen.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour primary>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour tiddler-background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #77a488
 tiddler-editor-background: #DADAB4
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #C4C4A2
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/FlowersAndDreams.tid b/plugins/tiddlywiki/palettes-2026/new/FlowersAndDreams.tid
index cb435d68a..67f8c0b8a 100644
--- a/plugins/tiddlywiki/palettes-2026/new/FlowersAndDreams.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/FlowersAndDreams.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #ae9dc6
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour foreground>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: <<colour primary>>
 tiddler-editor-background: #F0E6E4
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #E1D7D4
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: #ece1de
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/FujiWisteria.tid b/plugins/tiddlywiki/palettes-2026/new/FujiWisteria.tid
index 986710b64..e0483de4f 100644
--- a/plugins/tiddlywiki/palettes-2026/new/FujiWisteria.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/FujiWisteria.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #7A78B5
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour background>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #aba7d1
 tiddler-editor-background: #efede6
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #D7D5CF
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/GoGreen.tid b/plugins/tiddlywiki/palettes-2026/new/GoGreen.tid
index abb6ef9ec..19c66f4b1 100644
--- a/plugins/tiddlywiki/palettes-2026/new/GoGreen.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/GoGreen.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour background>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: #F2CC5B
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #bbc464
 tiddler-editor-background: #eddea2
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #D5C892
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/GothicElegance.tid b/plugins/tiddlywiki/palettes-2026/new/GothicElegance.tid
index 83a4e2010..59b6fd5f1 100644
--- a/plugins/tiddlywiki/palettes-2026/new/GothicElegance.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/GothicElegance.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border-selected>>
 sidebar-tab-foreground-selected: #A62552
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: #eca7c0
 site-title-foreground: <<colour foreground>>
 static-alert-foreground: <<colour very-muted-foreground>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/GrainRain.tid b/plugins/tiddlywiki/palettes-2026/new/GrainRain.tid
index fc5267746..17bf86dc7 100644
--- a/plugins/tiddlywiki/palettes-2026/new/GrainRain.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/GrainRain.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #97bb8b
 tiddler-editor-background: #CEDCB5
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #BECDA4
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: #c7d7ac
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/GreenTeaPicking.tid b/plugins/tiddlywiki/palettes-2026/new/GreenTeaPicking.tid
index d3a688f13..ce464c9f3 100644
--- a/plugins/tiddlywiki/palettes-2026/new/GreenTeaPicking.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/GreenTeaPicking.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #99AC30
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour primary>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #a9b93b
 tiddler-editor-background: #e1f0b6
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #CBD8A4
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/Hydrangea.tid b/plugins/tiddlywiki/palettes-2026/new/Hydrangea.tid
index dcd56db31..d26c35c50 100644
--- a/plugins/tiddlywiki/palettes-2026/new/Hydrangea.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/Hydrangea.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #CCE1DD
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #ddd2e0
 tiddler-editor-background: #E6DCDD
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #DBD1D2
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/IamCreative.tid b/plugins/tiddlywiki/palettes-2026/new/IamCreative.tid
index 79256fa2d..528602e37 100644
--- a/plugins/tiddlywiki/palettes-2026/new/IamCreative.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/IamCreative.tid
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #A0AEAF
 tiddler-editor-background: #e9ebe6
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #D2D4CF
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/JoyfulSpectrum.tid b/plugins/tiddlywiki/palettes-2026/new/JoyfulSpectrum.tid
index e500d48d5..2b3eea5f8 100644
--- a/plugins/tiddlywiki/palettes-2026/new/JoyfulSpectrum.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/JoyfulSpectrum.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #E6A5D3
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour tiddler-background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #c7e3e5
 tiddler-editor-background: #eff0ec
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #DDDDDA
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/MidnightDusk.tid b/plugins/tiddlywiki/palettes-2026/new/MidnightDusk.tid
index 514e4d25d..c7685de49 100644
--- a/plugins/tiddlywiki/palettes-2026/new/MidnightDusk.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/MidnightDusk.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border-selected>>
 sidebar-tab-foreground-selected: #F6EAB6
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: #F6EAB6
 static-alert-foreground: <<colour muted-foreground>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/MistyTealAndGrays.tid b/plugins/tiddlywiki/palettes-2026/new/MistyTealAndGrays.tid
index 499b7cd16..51e382ef2 100644
--- a/plugins/tiddlywiki/palettes-2026/new/MistyTealAndGrays.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/MistyTealAndGrays.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour background>>
 sidebar-tab-foreground: <<colour background>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: #e8ded3
 site-title-foreground: <<colour tiddler-background>>
 static-alert-foreground: <<colour tiddler-subtitle-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #526c78
 tiddler-editor-background: #385867
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #4C6976
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/Naporitan.tid b/plugins/tiddlywiki/palettes-2026/new/Naporitan.tid
index 0f4ac444f..2d5ed1371 100644
--- a/plugins/tiddlywiki/palettes-2026/new/Naporitan.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/Naporitan.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: #990402
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #FFDE2D
 tiddler-editor-background: #eef5c8
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #DCE3B9
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/NaturesEmbrace.tid b/plugins/tiddlywiki/palettes-2026/new/NaturesEmbrace.tid
index 57789fa75..6d4ab2f0a 100644
--- a/plugins/tiddlywiki/palettes-2026/new/NaturesEmbrace.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/NaturesEmbrace.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: <<colour primary>>
 tiddler-editor-background: #dee1d8
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #C8CBC2
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/OrangeJuice.tid b/plugins/tiddlywiki/palettes-2026/new/OrangeJuice.tid
index 452ca717b..06b38bc8c 100644
--- a/plugins/tiddlywiki/palettes-2026/new/OrangeJuice.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/OrangeJuice.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #106057
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #FDDD4C
 tiddler-editor-background: #ffedce
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #E6D5B9
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/PastelBunny.tid b/plugins/tiddlywiki/palettes-2026/new/PastelBunny.tid
index 902a867d5..ebfa54748 100644
--- a/plugins/tiddlywiki/palettes-2026/new/PastelBunny.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/PastelBunny.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #B6ADA6
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: <<colour primary>>
 tiddler-editor-background: #f4f1e1
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #DCD9CB
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/SeafoamCalm.tid b/plugins/tiddlywiki/palettes-2026/new/SeafoamCalm.tid
index c1dfeb7b2..0ee3647fe 100644
--- a/plugins/tiddlywiki/palettes-2026/new/SeafoamCalm.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/SeafoamCalm.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #79B5C4
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour primary>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -91,11 +91,11 @@ tiddler-background: #E7F7FB
 tiddler-border: <<colour tiddler-background>>
 tiddler-controls-foreground-hover: <<colour primary>>
 tiddler-controls-foreground-selected: #508790
-tiddler-controls-foreground: <<colour primary>>88
+tiddler-controls-foreground: [colour[primary]colour-set-alpha[0.5]]
 tiddler-editor-background: #DBEBEE
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #D0DEE2
-tiddler-editor-fields-even: <<colour primary>>88
+tiddler-editor-fields-even: [colour[primary]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/SweetSerenade.tid b/plugins/tiddlywiki/palettes-2026/new/SweetSerenade.tid
index 4dd867e3e..41c592f8a 100644
--- a/plugins/tiddlywiki/palettes-2026/new/SweetSerenade.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/SweetSerenade.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: #1E81B9
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: <<colour primary>>
 tiddler-editor-background: #f8f8f8
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #E6E6E6
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/Taurus.tid b/plugins/tiddlywiki/palettes-2026/new/Taurus.tid
index 8f36ee4c1..afae9e4a5 100644
--- a/plugins/tiddlywiki/palettes-2026/new/Taurus.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/Taurus.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: #818E70
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour tiddler-background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #d4bb8b
 tiddler-editor-background: #f1e5cd
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #D9CEB9
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/TranquilHarmony.tid b/plugins/tiddlywiki/palettes-2026/new/TranquilHarmony.tid
index b2fce9f92..371247b86 100644
--- a/plugins/tiddlywiki/palettes-2026/new/TranquilHarmony.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/TranquilHarmony.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour tab-border>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: #E886B1
 site-title-foreground: #96A199
 static-alert-foreground: <<colour muted-foreground>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/Walpurgisnacht.tid b/plugins/tiddlywiki/palettes-2026/new/Walpurgisnacht.tid
index b125fae87..d49dfec63 100644
--- a/plugins/tiddlywiki/palettes-2026/new/Walpurgisnacht.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/Walpurgisnacht.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border-selected>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: #A8614F
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: #3e4443
 tiddler-editor-background: #545a57
 tiddler-editor-border-image: #FFFFFF
 tiddler-editor-border: #656B68
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/WhimsicalDreamscape.tid b/plugins/tiddlywiki/palettes-2026/new/WhimsicalDreamscape.tid
index 3fc305f8b..fe7b8d9be 100644
--- a/plugins/tiddlywiki/palettes-2026/new/WhimsicalDreamscape.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/WhimsicalDreamscape.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour sidebar-tab-background>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: <<colour tiddler-link-foreground>>
 site-title-foreground: <<colour tiddler-background>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -95,7 +95,7 @@ tiddler-controls-foreground: <<colour primary>>
 tiddler-editor-background: #edefee
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #D5D7D6
-tiddler-editor-fields-even: <<colour tiddler-controls-foreground>>88
+tiddler-editor-fields-even: [colour[tiddler-controls-foreground]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: #f0f0f0
 tiddler-info-border: <<colour tiddler-info-background>>
diff --git a/plugins/tiddlywiki/palettes-2026/new/WhisperingHaze.tid b/plugins/tiddlywiki/palettes-2026/new/WhisperingHaze.tid
index 3802b01b0..80900bde5 100644
--- a/plugins/tiddlywiki/palettes-2026/new/WhisperingHaze.tid
+++ b/plugins/tiddlywiki/palettes-2026/new/WhisperingHaze.tid
@@ -71,7 +71,7 @@ sidebar-tab-border: <<colour primary>>
 sidebar-tab-divider: <<colour sidebar-tab-border>>
 sidebar-tab-foreground-selected: <<colour foreground>>
 sidebar-tab-foreground: <<colour foreground>>
-sidebar-tiddler-link-foreground-hover: <<colour sidebar-tiddler-link-foreground>>88
+sidebar-tiddler-link-foreground-hover: [colour[sidebar-tiddler-link-foreground]colour-set-alpha[0.5]]
 sidebar-tiddler-link-foreground: #c5748b
 site-title-foreground: <<colour primary>>
 static-alert-foreground: <<colour muted-foreground>>
@@ -91,11 +91,11 @@ tiddler-background: #A9B2C0
 tiddler-border: <<colour tiddler-background>>
 tiddler-controls-foreground-hover: <<colour primary>>
 tiddler-controls-foreground-selected: #7987b2
-tiddler-controls-foreground: <<colour primary>>88
+tiddler-controls-foreground: [colour[primary]colour-set-alpha[0.5]]
 tiddler-editor-background: #b2bac7
 tiddler-editor-border-image: #ffffff
 tiddler-editor-border: #98A0AD
-tiddler-editor-fields-even: <<colour primary>>88
+tiddler-editor-fields-even: [colour[primary]colour-set-alpha[0.5]]
 tiddler-editor-fields-odd: 
 tiddler-info-background: <<colour tiddler-editor-background>>
 tiddler-info-border: <<colour tiddler-info-background>>