diff --git a/packages/cli/src/ui/themes/ansi-light.ts b/packages/cli/src/ui/themes/ansi-light.ts
index 95807064e2..201cc500e5 100644
--- a/packages/cli/src/ui/themes/ansi-light.ts
+++ b/packages/cli/src/ui/themes/ansi-light.ts
@@ -10,7 +10,7 @@ import { lightSemanticColors } from './semantic-tokens.js';
 const ansiLightColors: ColorsTheme = {
   type: 'light',
   Background: 'white',
-  Foreground: '#444',
+  Foreground: '',
   LightBlue: 'blue',
   AccentBlue: 'blue',
   AccentPurple: 'purple',
diff --git a/packages/cli/src/ui/themes/ansi.ts b/packages/cli/src/ui/themes/ansi.ts
index 335c9abcfc..08c0a2c968 100644
--- a/packages/cli/src/ui/themes/ansi.ts
+++ b/packages/cli/src/ui/themes/ansi.ts
@@ -10,7 +10,7 @@ import { darkSemanticColors } from './semantic-tokens.js';
 const ansiColors: ColorsTheme = {
   type: 'dark',
   Background: 'black',
-  Foreground: 'white',
+  Foreground: '',
   LightBlue: 'bluebright',
   AccentBlue: 'blue',
   AccentPurple: 'magenta',
diff --git a/packages/cli/src/ui/themes/theme.ts b/packages/cli/src/ui/themes/theme.ts
index e2762773dc..6ef58aae88 100644
--- a/packages/cli/src/ui/themes/theme.ts
+++ b/packages/cli/src/ui/themes/theme.ts
@@ -83,7 +83,7 @@ export interface CustomTheme {
 export const lightTheme: ColorsTheme = {
   type: 'light',
   Background: '#FAFAFA',
-  Foreground: '#383A42',
+  Foreground: '',
   LightBlue: '#89BDCD',
   AccentBlue: '#3B82F6',
   AccentPurple: '#8B5CF6',
@@ -102,7 +102,7 @@ export const lightTheme: ColorsTheme = {
 export const darkTheme: ColorsTheme = {
   type: 'dark',
   Background: '#1E1E2E',
-  Foreground: '#CDD6F4',
+  Foreground: '',
   LightBlue: '#ADD8E6',
   AccentBlue: '#89B4FA',
   AccentPurple: '#CBA6F7',
@@ -121,7 +121,7 @@ export const darkTheme: ColorsTheme = {
 export const ansiTheme: ColorsTheme = {
   type: 'ansi',
   Background: 'black',
-  Foreground: 'white',
+  Foreground: '',
   LightBlue: 'blue',
   AccentBlue: 'blue',
   AccentPurple: 'magenta',