Problem
Currently, borderColor and backgroundColor on BoxRenderable are rendered using true color escape sequences (\e[38;2;r;g;bm). This means the colors are absolute RGB values that don't adapt to the user's terminal color scheme.
ANSI 16 color codes (\e[31m, \e[41m, etc.) are mapped by the terminal emulator to its configured palette, so an app can automatically adapt to the user's theme — especially important over SSH where the client terminal defines the colors.
Current behavior
fg() styled text supports ANSI named colors via red(), blue(), cyan() etc.borderColor and backgroundColor accept ColorInput but always render as true color, even when a named color like "red" is passed — parseColor converts it to a fixed RGB value (rgba(1,0,0))
Expected behavior
When a named ANSI color (e.g. "red", "blue", "brightCyan") is used as borderColor or backgroundColor, it should emit the corresponding ANSI 16 escape code instead of a true color sequence, so the terminal can map it to its palette.
Use case
Building a TUI app that respects the user's terminal theme out of the box, without requiring manual color configuration. This is standard behavior in tools like lazygit and other popular terminal apps.
Problem
Currently,
borderColorandbackgroundColoronBoxRenderableare rendered using true color escape sequences (\e[38;2;r;g;bm). This means the colors are absolute RGB values that don't adapt to the user's terminal color scheme.ANSI 16 color codes (
\e[31m,\e[41m, etc.) are mapped by the terminal emulator to its configured palette, so an app can automatically adapt to the user's theme — especially important over SSH where the client terminal defines the colors.Current behavior
fg()styled text supports ANSI named colors viared(),blue(),cyan()etc.borderColorandbackgroundColoracceptColorInputbut always render as true color, even when a named color like"red"is passed —parseColorconverts it to a fixed RGB value (rgba(1,0,0))Expected behavior
When a named ANSI color (e.g.
"red","blue","brightCyan") is used asborderColororbackgroundColor, it should emit the corresponding ANSI 16 escape code instead of a true color sequence, so the terminal can map it to its palette.Use case
Building a TUI app that respects the user's terminal theme out of the box, without requiring manual color configuration. This is standard behavior in tools like lazygit and other popular terminal apps.