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feat(render): add configurable attribute colors for bold, italic, and underline

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Introduce optional color theme entries for bold, italic, and underline text
when the foreground color is default. This allows legacy applications using
SGR attributes instead of explicit colors to be rendered with user-defined
attribute colors. Brightening via `bold_in_bright` is suppressed when an
explicit attribute color is applied.

This adds compatibility with the rxvt-unicode settings `colorBD`,
`colorIT` and `colorUL`.

Fixes: #2261
This commit is contained in:
Florian Best 2026-01-17 03:38:53 +01:00
parent ecf3b864e4
commit bccc12b3fb
8 changed files with 60 additions and 2 deletions
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6
config.c
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@ -1464,6 +1464,9 @@ parse_color_theme(struct context *ctx, struct color_theme *theme)
else if (streq(key, "flash")) color = &theme->flash;
else if (streq(key, "foreground")) color = &theme->fg;
else if (streq(key, "background")) color = &theme->bg;
else if (streq(key, "bold")) color = &theme->bold;
else if (streq(key, "italic")) color = &theme->italic;
else if (streq(key, "underline")) color = &theme->underline;
else if (streq(key, "selection-foreground")) color = &theme->selection_fg;
else if (streq(key, "selection-background")) color = &theme->selection_bg;
@ -3540,6 +3543,9 @@ config_load(struct config *conf, const char *conf_path,
.dim_blend_towards = DIM_BLEND_TOWARDS_BLACK,
.selection_fg = 0x80000000, /* Use default bg */
.selection_bg = 0x80000000, /* Use default fg */
.bold = 0x80000000, /* default: unset */
.italic = 0x80000000, /* default: unset */
.underline = 0x80000000, /* default: unset */
.cursor = {
.text = 0,
.cursor = 0,