Fix diff line number contrast for built-in themes (#22464)

34 files changed, 61 insertions, 71 deletions

diff --git a/.opencode/themes/mytheme.json b/.opencode/themes/mytheme.json
index e444de807..0e6b94800 100644
--- a/.opencode/themes/mytheme.json
+++ b/.opencode/themes/mytheme.json
@@ -116,8 +116,8 @@
       "light": "nord5"
     },
     "diffLineNumber": {
-      "dark": "nord2",
-      "light": "nord4"
+      "dark": "#abafb7",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "#3B4252",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme.tsx b/packages/opencode/src/cli/cmd/tui/context/theme.tsx
index 4857f7a4d..de8152996 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme.tsx
+++ b/packages/opencode/src/cli/cmd/tui/context/theme.tsx
@@ -542,8 +542,10 @@ function generateSystem(colors: TerminalColors, mode: "dark" | "light"): ThemeJs
   const diffAlpha = isDark ? 0.22 : 0.14
   const diffAddedBg = tint(bg, ansiColors.green, diffAlpha)
   const diffRemovedBg = tint(bg, ansiColors.red, diffAlpha)
-  const diffAddedLineNumberBg = tint(grays[3], ansiColors.green, diffAlpha)
-  const diffRemovedLineNumberBg = tint(grays[3], ansiColors.red, diffAlpha)
+  const diffContextBg = grays[2]
+  const diffAddedLineNumberBg = tint(diffContextBg, ansiColors.green, diffAlpha)
+  const diffRemovedLineNumberBg = tint(diffContextBg, ansiColors.red, diffAlpha)
+  const diffLineNumber = textMuted
 
   return {
     theme: {
@@ -583,8 +585,8 @@ function generateSystem(colors: TerminalColors, mode: "dark" | "light"): ThemeJs
       diffHighlightRemoved: ansiColors.redBright,
       diffAddedBg,
       diffRemovedBg,
-      diffContextBg: grays[1],
-      diffLineNumber: grays[6],
+      diffContextBg,
+      diffLineNumber,
       diffAddedLineNumberBg,
       diffRemovedLineNumberBg,
 
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/aura.json b/packages/opencode/src/cli/cmd/tui/context/theme/aura.json
index e7798d520..ebd829f4e 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/aura.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/aura.json
@@ -39,7 +39,7 @@
     "diffAddedBg": "#354933",
     "diffRemovedBg": "#3f191a",
     "diffContextBg": "darkBgPanel",
-    "diffLineNumber": "darkBorder",
+    "diffLineNumber": "#898989",
     "diffAddedLineNumberBg": "#162620",
     "diffRemovedLineNumberBg": "#26161a",
     "markdownText": "darkFg",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/ayu.json b/packages/opencode/src/cli/cmd/tui/context/theme/ayu.json
index a42fce4c4..92957ac85 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/ayu.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/ayu.json
@@ -50,7 +50,7 @@
     "diffAddedBg": "#20303b",
     "diffRemovedBg": "#37222c",
     "diffContextBg": "darkPanel",
-    "diffLineNumber": "darkGutter",
+    "diffLineNumber": "diffContext",
     "diffAddedLineNumberBg": "#1b2b34",
     "diffRemovedLineNumberBg": "#2d1f26",
     "markdownText": "darkFg",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/carbonfox.json b/packages/opencode/src/cli/cmd/tui/context/theme/carbonfox.json
index b91de1fea..a9b7dc46a 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/carbonfox.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/carbonfox.json
@@ -141,8 +141,8 @@
       "light": "lbg1"
     },
     "diffLineNumber": {
-      "dark": "fg3",
-      "light": "lfg3"
+      "dark": "#808792",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "diffGreenBg",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-frappe.json b/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-frappe.json
index 61f86a87a..b5fdc9ac5 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-frappe.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-frappe.json
@@ -125,10 +125,7 @@
       "dark": "frappeMantle",
       "light": "frappeMantle"
     },
-    "diffLineNumber": {
-      "dark": "frappeSurface1",
-      "light": "frappeSurface1"
-    },
+    "diffLineNumber": "textMuted",
     "diffAddedLineNumberBg": {
       "dark": "#223025",
       "light": "#223025"
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-macchiato.json b/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-macchiato.json
index 1cbca3c3f..363faa626 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-macchiato.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin-macchiato.json
@@ -125,10 +125,7 @@
       "dark": "macMantle",
       "light": "macMantle"
     },
-    "diffLineNumber": {
-      "dark": "macSurface1",
-      "light": "macSurface1"
-    },
+    "diffLineNumber": "textMuted",
     "diffAddedLineNumberBg": {
       "dark": "#223025",
       "light": "#223025"
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin.json b/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin.json
index 48e825212..4f00bad1e 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/catppuccin.json
@@ -79,7 +79,7 @@
     "diffAddedBg": { "dark": "#24312b", "light": "#d6f0d9" },
     "diffRemovedBg": { "dark": "#3c2a32", "light": "#f6dfe2" },
     "diffContextBg": { "dark": "darkMantle", "light": "lightMantle" },
-    "diffLineNumber": { "dark": "darkSurface1", "light": "lightSurface1" },
+    "diffLineNumber": { "dark": "textMuted", "light": "#5b5d63" },
     "diffAddedLineNumberBg": { "dark": "#1e2a25", "light": "#c9e3cb" },
     "diffRemovedLineNumberBg": { "dark": "#32232a", "light": "#e9d3d6" },
     "markdownText": { "dark": "darkText", "light": "lightText" },
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/cobalt2.json b/packages/opencode/src/cli/cmd/tui/context/theme/cobalt2.json
index 2967eae58..509ae086d 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/cobalt2.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/cobalt2.json
@@ -120,10 +120,7 @@
       "dark": "#122738",
       "light": "#f5f7fa"
     },
-    "diffLineNumber": {
-      "dark": "#2d5a7b",
-      "light": "#b0bec5"
-    },
+    "diffLineNumber": "textMuted",
     "diffAddedLineNumberBg": {
       "dark": "#1a3a2a",
       "light": "#e8f5e9"
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/cursor.json b/packages/opencode/src/cli/cmd/tui/context/theme/cursor.json
index ab518dbe7..39c37112b 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/cursor.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/cursor.json
@@ -142,8 +142,8 @@
       "light": "lightPanel"
     },
     "diffLineNumber": {
-      "dark": "#e4e4e442",
-      "light": "#1414147a"
+      "dark": "#eeeeee87",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "#3fa26633",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/dracula.json b/packages/opencode/src/cli/cmd/tui/context/theme/dracula.json
index c837a0b58..0e493194a 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/dracula.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/dracula.json
@@ -112,8 +112,8 @@
       "light": "#e8e8e2"
     },
     "diffLineNumber": {
-      "dark": "currentLine",
-      "light": "#c8c8c2"
+      "dark": "#989aa4",
+      "light": "#686865"
     },
     "diffAddedLineNumberBg": {
       "dark": "#1a3a1a",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/everforest.json b/packages/opencode/src/cli/cmd/tui/context/theme/everforest.json
index 62dfb31ba..29924b5e3 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/everforest.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/everforest.json
@@ -134,8 +134,8 @@
       "light": "lightStep2"
     },
     "diffLineNumber": {
-      "dark": "darkStep3",
-      "light": "lightStep3"
+      "dark": "#a0a5a7",
+      "light": "#5b5951"
     },
     "diffAddedLineNumberBg": {
       "dark": "#1b2b34",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/flexoki.json b/packages/opencode/src/cli/cmd/tui/context/theme/flexoki.json
index e525705dd..c8cc0744d 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/flexoki.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/flexoki.json
@@ -130,8 +130,8 @@
       "light": "base50"
     },
     "diffLineNumber": {
-      "dark": "base600",
-      "light": "base600"
+      "dark": "#888883",
+      "light": "#5a5955"
     },
     "diffAddedLineNumberBg": {
       "dark": "#152515",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/github.json b/packages/opencode/src/cli/cmd/tui/context/theme/github.json
index 99a80879e..1136c818b 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/github.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/github.json
@@ -126,8 +126,8 @@
       "light": "lightBgAlt"
     },
     "diffLineNumber": {
-      "dark": "#484f58",
-      "light": "#afb8c1"
+      "dark": "#95999e",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "#033a16",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/gruvbox.json b/packages/opencode/src/cli/cmd/tui/context/theme/gruvbox.json
index dcae30258..50c835752 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/gruvbox.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/gruvbox.json
@@ -135,8 +135,8 @@
       "light": "lightBg1"
     },
     "diffLineNumber": {
-      "dark": "darkBg3",
-      "light": "lightBg3"
+      "dark": "#a8a29e",
+      "light": "#564f43"
     },
     "diffAddedLineNumberBg": {
       "dark": "#2a2827",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/kanagawa.json b/packages/opencode/src/cli/cmd/tui/context/theme/kanagawa.json
index 91a784014..0efe548d6 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/kanagawa.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/kanagawa.json
@@ -47,7 +47,7 @@
     "diffAddedBg": { "dark": "#252E25", "light": "#EAF3E4" },
     "diffRemovedBg": { "dark": "#362020", "light": "#FBE6E6" },
     "diffContextBg": { "dark": "sumiInk1", "light": "lightPaper" },
-    "diffLineNumber": { "dark": "sumiInk3", "light": "#C7BEB4" },
+    "diffLineNumber": { "dark": "#9090a0", "light": "#65615c" },
     "diffAddedLineNumberBg": { "dark": "#202820", "light": "#DDE8D6" },
     "diffRemovedLineNumberBg": { "dark": "#2D1C1C", "light": "#F2DADA" },
     "markdownText": { "dark": "fujiWhite", "light": "lightText" },
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/lucent-orng.json b/packages/opencode/src/cli/cmd/tui/context/theme/lucent-orng.json
index 036dedf2e..c1b814cf7 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/lucent-orng.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/lucent-orng.json
@@ -129,10 +129,7 @@
       "dark": "transparent",
       "light": "transparent"
     },
-    "diffLineNumber": {
-      "dark": "#666666",
-      "light": "#999999"
-    },
+    "diffLineNumber": "textMuted",
     "diffAddedLineNumberBg": {
       "dark": "transparent",
       "light": "transparent"
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/material.json b/packages/opencode/src/cli/cmd/tui/context/theme/material.json
index c3a106808..c9e694b2f 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/material.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/material.json
@@ -128,8 +128,8 @@
       "light": "lightBgAlt"
     },
     "diffLineNumber": {
-      "dark": "#37474f",
-      "light": "#cfd8dc"
+      "dark": "#9aa2a6",
+      "light": "#6a6e70"
     },
     "diffAddedLineNumberBg": {
       "dark": "#2e3c2b",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/matrix.json b/packages/opencode/src/cli/cmd/tui/context/theme/matrix.json
index 354946284..a9cb3a77d 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/matrix.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/matrix.json
@@ -47,7 +47,7 @@
     "diffAddedBg": { "dark": "#132616", "light": "#e0efde" },
     "diffRemovedBg": { "dark": "#261212", "light": "#f9e5e5" },
     "diffContextBg": { "dark": "matrixInk1", "light": "lightPaper" },
-    "diffLineNumber": { "dark": "matrixInk3", "light": "lightGray" },
+    "diffLineNumber": { "dark": "textMuted", "light": "#556156" },
     "diffAddedLineNumberBg": { "dark": "#0f1b11", "light": "#d6e7d2" },
     "diffRemovedLineNumberBg": { "dark": "#1b1414", "light": "#f2d2d2" },
     "markdownText": { "dark": "rainGreenHi", "light": "lightText" },
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/monokai.json b/packages/opencode/src/cli/cmd/tui/context/theme/monokai.json
index 09637a1e2..7cc1066c1 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/monokai.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/monokai.json
@@ -114,8 +114,8 @@
       "light": "#f0f0f0"
     },
     "diffLineNumber": {
-      "dark": "#3e3d32",
-      "light": "#d0d0d0"
+      "dark": "#9b9b95",
+      "light": "#686868"
     },
     "diffAddedLineNumberBg": {
       "dark": "#1a3a1a",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/nightowl.json b/packages/opencode/src/cli/cmd/tui/context/theme/nightowl.json
index 24c74733d..d123396de 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/nightowl.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/nightowl.json
@@ -114,8 +114,8 @@
       "light": "nightOwlPanel"
     },
     "diffLineNumber": {
-      "dark": "nightOwlMuted",
-      "light": "nightOwlMuted"
+      "dark": "#7791a6",
+      "light": "#7791a6"
     },
     "diffAddedLineNumberBg": {
       "dark": "#0a2e1a",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/nord.json b/packages/opencode/src/cli/cmd/tui/context/theme/nord.json
index 4a525382a..a235cfe4d 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/nord.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/nord.json
@@ -116,8 +116,8 @@
       "light": "nord5"
     },
     "diffLineNumber": {
-      "dark": "nord2",
-      "light": "nord4"
+      "dark": "#a9aeb6",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "#3B4252",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/one-dark.json b/packages/opencode/src/cli/cmd/tui/context/theme/one-dark.json
index 73b24e929..9776f3b1b 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/one-dark.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/one-dark.json
@@ -51,7 +51,7 @@
     "diffAddedBg": { "dark": "#2c382b", "light": "#eafbe9" },
     "diffRemovedBg": { "dark": "#3a2d2f", "light": "#fce9e8" },
     "diffContextBg": { "dark": "darkBgAlt", "light": "lightBgAlt" },
-    "diffLineNumber": { "dark": "#495162", "light": "#c9c9ca" },
+    "diffLineNumber": { "dark": "#9398a2", "light": "#666666" },
     "diffAddedLineNumberBg": { "dark": "#283427", "light": "#e1f3df" },
     "diffRemovedLineNumberBg": { "dark": "#36292b", "light": "#f5e2e1" },
     "markdownText": { "dark": "darkFg", "light": "lightFg" },
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/opencode.json b/packages/opencode/src/cli/cmd/tui/context/theme/opencode.json
index 8f585a450..e92dca8c2 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/opencode.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/opencode.json
@@ -138,8 +138,8 @@
       "light": "lightStep2"
     },
     "diffLineNumber": {
-      "dark": "darkStep3",
-      "light": "lightStep3"
+      "dark": "#8f8f8f",
+      "light": "#595959"
     },
     "diffAddedLineNumberBg": {
       "dark": "#1b2b34",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/orng.json b/packages/opencode/src/cli/cmd/tui/context/theme/orng.json
index 1fc602f2c..5811da06e 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/orng.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/orng.json
@@ -142,8 +142,8 @@
       "light": "lightStep2"
     },
     "diffLineNumber": {
-      "dark": "darkStep3",
-      "light": "lightStep3"
+      "dark": "diffContext",
+      "light": "#595755"
     },
     "diffAddedLineNumberBg": {
       "dark": "#162535",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/osaka-jade.json b/packages/opencode/src/cli/cmd/tui/context/theme/osaka-jade.json
index 1c9de92af..5c39d927f 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/osaka-jade.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/osaka-jade.json
@@ -60,7 +60,7 @@
     "diffAddedBg": { "dark": "#15241c", "light": "#e0eee5" },
     "diffRemovedBg": { "dark": "#241515", "light": "#eee0e0" },
     "diffContextBg": { "dark": "darkBg1", "light": "lightBg1" },
-    "diffLineNumber": { "dark": "darkBg3", "light": "lightBg3" },
+    "diffLineNumber": { "dark": "#828b87", "light": "#5f5e4f" },
     "diffAddedLineNumberBg": { "dark": "#121f18", "light": "#d5e5da" },
     "diffRemovedLineNumberBg": { "dark": "#1f1212", "light": "#e5d5d5" },
     "markdownText": { "dark": "darkFg0", "light": "lightFg0" },
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/palenight.json b/packages/opencode/src/cli/cmd/tui/context/theme/palenight.json
index 79f7c59e8..803ac7c23 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/palenight.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/palenight.json
@@ -115,8 +115,8 @@
       "light": "#f5f5f5"
     },
     "diffLineNumber": {
-      "dark": "#444760",
-      "light": "#cfd8dc"
+      "dark": "#a0a2af",
+      "light": "#6a6e70"
     },
     "diffAddedLineNumberBg": {
       "dark": "#2e3c2b",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/rosepine.json b/packages/opencode/src/cli/cmd/tui/context/theme/rosepine.json
index 444cdbd13..7e1db3760 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/rosepine.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/rosepine.json
@@ -127,8 +127,8 @@
       "light": "dawnSurface"
     },
     "diffLineNumber": {
-      "dark": "muted",
-      "light": "dawnMuted"
+      "dark": "#9491a6",
+      "light": "#6c6875"
     },
     "diffAddedLineNumberBg": {
       "dark": "#1f2d3a",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/solarized.json b/packages/opencode/src/cli/cmd/tui/context/theme/solarized.json
index e4de11367..ddf5d3ae8 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/solarized.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/solarized.json
@@ -116,8 +116,8 @@
       "light": "base2"
     },
     "diffLineNumber": {
-      "dark": "base01",
-      "light": "base1"
+      "dark": "#8b9b9f",
+      "light": "#5f6969"
     },
     "diffAddedLineNumberBg": {
       "dark": "#073642",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/synthwave84.json b/packages/opencode/src/cli/cmd/tui/context/theme/synthwave84.json
index d25bf3b49..6ed47fe0b 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/synthwave84.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/synthwave84.json
@@ -119,8 +119,8 @@
       "light": "#f5f5f5"
     },
     "diffLineNumber": {
-      "dark": "#495495",
-      "light": "#b0b0b0"
+      "dark": "#959bc1",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "#1a3a2a",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/tokyonight.json b/packages/opencode/src/cli/cmd/tui/context/theme/tokyonight.json
index 1c9503a42..a69d4b985 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/tokyonight.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/tokyonight.json
@@ -136,8 +136,8 @@
       "light": "lightStep2"
     },
     "diffLineNumber": {
-      "dark": "darkStep3",
-      "light": "lightStep3"
+      "dark": "#8f909a",
+      "light": "#59595b"
     },
     "diffAddedLineNumberBg": {
       "dark": "#1b2b34",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/vercel.json b/packages/opencode/src/cli/cmd/tui/context/theme/vercel.json
index 86b965b10..119e56211 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/vercel.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/vercel.json
@@ -138,8 +138,8 @@
       "light": "lightBackground"
     },
     "diffLineNumber": {
-      "dark": "gray600",
-      "light": "lightGray600"
+      "dark": "#8a8a8a",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "#0F2613",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/vesper.json b/packages/opencode/src/cli/cmd/tui/context/theme/vesper.json
index 758c8f20c..2f1135878 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/vesper.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/vesper.json
@@ -111,8 +111,8 @@
       "light": "#F8F8F8"
     },
     "diffLineNumber": {
-      "dark": "#505050",
-      "light": "#808080"
+      "dark": "textMuted",
+      "light": "#6a6a6a"
     },
     "diffAddedLineNumberBg": {
       "dark": "#0d2818",
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/zenburn.json b/packages/opencode/src/cli/cmd/tui/context/theme/zenburn.json
index c4475923b..9407d2b19 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme/zenburn.json
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/zenburn.json
@@ -116,8 +116,8 @@
       "light": "#f5f5e5"
     },
     "diffLineNumber": {
-      "dark": "#6f6f6f",
-      "light": "#b0b0a0"
+      "dark": "#d2d2d2",
+      "light": "textMuted"
     },
     "diffAddedLineNumberBg": {
       "dark": "#4f5f4f",