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fix(theme): stop the code editor painting its gutter and current line in the stock syntax theme's colours (#636)

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Co-authored-by: l0ng-ai <24760907+l0ng-ai@users.noreply.github.com>
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l0ng-ai
2026-08-14 18:58:33 +08:00
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co-authored by l0ng-ai
parent 34957f8659
commit 3bc8a764f7
1 changed files with 21 additions and 0 deletions
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src/ui/theme.rs
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@@ -819,6 +819,27 @@ pub(crate) fn apply_theme(mut window: Option<&mut Window>, cx: &mut App) {
// ring and the on-switch.
t.drag_border = rgb(m.accent).into();
// The code editor's gutter fill and current-line band do not come from
// `Theme` at all — gpui-component reads them off the *syntax* theme, which
// is still its stock one. So the editor painted a #0a0a0a strip down the
// line-number column and a #171717 band across the cursor's line, on top of
// a preset background that is nowhere near either. That is the black edge.
//
// Cleared to transparent rather than repainted with the preset's own fill:
// the code panel sits on the window background, which may be a gradient or
// a wallpaper image, and any flat colour would show as a seam against it.
// The current line and the invisibles become translucent ink for the same
// reason — they read correctly on light and dark presets alike.
let ink: Hsla = rgb(m.foreground).into();
let mut highlight = (*t.highlight_theme).clone();
highlight.style.editor_background = Some(gpui::transparent_black());
highlight.style.editor_gutter_background = Some(gpui::transparent_black());
highlight.style.editor_active_line = Some(ink.opacity(0.06));
highlight.style.editor_line_number = Some(rgb(m.muted_foreground).into());
highlight.style.editor_active_line_number = Some(ink);
highlight.style.editor_invisible = Some(ink.opacity(0.25));
t.highlight_theme = std::sync::Arc::new(highlight);
#[cfg(target_os = "macos")]
if let Some(window) = window.as_deref_mut() {
window.set_traffic_light_position(traffic_light_position());