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fix(desktop): add color-emoji font fallback so emoji render (#40364)

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None of the UI sans/mono font stacks (themes/presets.ts, styles.css) carry
emoji glyphs, so on platforms whose default text font lacks them (e.g. Linux)
emoji rendered as tofu boxes in the composer and chat.

Append a color-emoji fallback — Apple Color Emoji / Segoe UI Emoji / Segoe UI
Symbol / Noto Color Emoji / the `emoji` generic — to every font stack
(SYSTEM_SANS, SYSTEM_MONO, the Courier theme, and the CSS --dt-font-* defaults).
Text still uses the primary fonts; the browser only falls back for emoji
codepoints. Custom themes build on SYSTEM_* so they inherit it automatically.
This commit is contained in:
xxxigm
2026-06-06 19:58:39 -07:00
committed by Teknium
parent b08662b782
commit bec07964be
2 changed files with 18 additions and 7 deletions
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apps/desktop/src/styles.css
+4 -2
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@@ -266,8 +266,10 @@
--dt-user-bubble: var(--ui-chat-bubble-background);
--dt-user-bubble-border: var(--ui-stroke-tertiary);
--dt-font-sans: 'Segoe WPC', 'Segoe UI', -apple-system, BlinkMacSystemFont, 'SF Pro Text', system-ui, sans-serif;
--dt-font-mono: 'Cascadia Code', 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
--dt-font-sans: 'Segoe WPC', 'Segoe UI', -apple-system, BlinkMacSystemFont, 'SF Pro Text', system-ui, sans-serif,
'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji', emoji;
--dt-font-mono: 'Cascadia Code', 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, Consolas, monospace,
'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji', emoji;
--dt-base-size: 1rem;
--dt-line-height: 1.5;
--dt-letter-spacing: 0;