update-default-theme

name	update-default-theme
description	Update the app's default theme colors (accent, background, primary, highlights) consistently across every place a default is hardcoded. Use when changing the default accent/background/highlight colors so no surface (portaled modals, emails, presets, CSS fallbacks) drifts out of sync.
user-invocable	true

Update Default Theme

The default theme (currently green accent #57822B on off-white #FDFCFA) is hardcoded in several disconnected places. There is no single constant that all of them import, so changing one leaves the others stale. The classic symptom: a portaled surface (a Radix Dialog modal like DiscussionModal) escapes the local BaseThemeProvider wrapper and falls back to the :root CSS defaults — if those weren't updated, the modal shows the old colors while everything else shows the new ones.

When to use

The user wants to change what the default theme looks like — the default accent, background, primary text, or highlighter colors — and wants it applied everywhere. Also use it as a consistency audit after any theme-default edit.

The canonical values

Treat these two files as the source of truth. Everything else must match them:

• components/ThemeManager/themeDefaults.ts — PubThemeDefaults (hex) and PubThemeDefaultsRGB (parsed RGB). Used by publication records and createPublication.ts.
• components/ThemeManager/themeUtils.ts — ThemeDefaults (labeled "the color defaults for everything"). Used by leaflet/useColorAttribute fallbacks.

Keep these two in agreement with each other first, then propagate outward.

Current default: accent-background/accent-contrast #57822B (rgb 87, 130, 43), accent-text #FFFFFF, background #FDFCFA (rgb 253, 252, 250), primary #272727 (rgb 39, 39, 39), highlight-2 #EDD280 (rgb 237, 210, 128), highlight-3 #FFCDC3 (rgb 255, 205, 195). Highlight-1 has no fixed value — its default is a computed tint: color-mix(in oklab, rgb(var(--accent-contrast)), rgb(var(--bg-page)) 75%).

Every place to update (the checklist)

Work through all of these. Each stores the same defaults in a different format, so convert accordingly (hex ↔ r, g, b triple ↔ rgb(r, g, b) string).

1. components/ThemeManager/themeDefaults.ts — PubThemeDefaults (hex) and PubThemeDefaultsRGB ({ r, g, b }). Keep both in sync with each other.
2. components/ThemeManager/themeUtils.ts — ThemeDefaults map (theme/page-background, theme/card-background, theme/primary, theme/accent-background, theme/accent-text, theme/accent-contrast, theme/highlight-1..3).
3. app/globals.css — the @layer base { :root { ... } } block. This is the fallback for anything rendered outside a BaseThemeProvider (portaled modals/overlays). Values are bare r, g, b triples: --bg-leaflet, --bg-page, --primary, --accent-1, --accent-2, --accent-contrast, --highlight-2, --highlight-3. --highlight-1 is the color-mix(...) expression, not a triple — match BaseThemeProvider's runtime fallback. Note --bg-leaflet = outer/page background (#FDFCFA), --bg-page = card (#FFFFFF).
4. emails/shared.tsx — defaultEmailTheme (rgb(...) strings) and the @react-email tailwind colors block lower in the same file. Gmail strips color-mix(), so highlight-1 here must be a literal rgb resolved via the same math mixRgb/defaultHighlightBackground uses: mixRgb(accent, pageBackground, 75) — a simple sRGB lerp (accent*0.25 + bg*0.75). For #57822B on white that is rgb(213, 224, 202).
5. components/ThemeManager/PubPickers/PubPresetPicker.tsx — the preset named (hex). Its // must equal the canonical default (watch for near-miss values like vs ).

Leave these alone — they are intentional, context-specific, not the global default:

• StandalonePageBackground = "#FFFFFF" in PublicationThemeProvider.tsx (standalone-doc page bg, mirrors the editor default).
• Other named presets in PubPresetPicker.tsx (Minimal, Bookish, Colorful, …).

Process

1. Decide the new canonical values with the user (accent, background, primary, highlights). Express each as hex first.
2. Edit files 1 and 2 (the source of truth). Convert hex → RGB triples for the RGB/CSS variants.
3. Propagate to files 3–5, converting to each file's format.
4. Verify nothing stale remains — grep for the old values across --include *.css/*.ts/*.tsx (excluding node_modules and .next) to catch any leftover copies:

   grep -rn "OLD_HEX\|OLD_R, *OLD_G, *OLD_B\|rgb(OLD_R, OLD_G, OLD_B)" \
     --include="*.css" --include="*.ts" --include="*.tsx" . \
     | grep -vE "node_modules|\.next"
   

5. Sanity-check the CSS parses:

   node -e "const l=require('lightningcss'),fs=require('fs');l.transform({filename:'app/globals.css',code:fs.readFileSync('app/globals.css'),minify:false});console.log('css ok')"
   

6. Report the full list of files changed so the user can confirm coverage.

Why this is fragile (context for the reader)

The runtime theme system reads the source-of-truth constants and writes CSS variables onto the BaseThemeProvider wrapper (local mode) or :root (non-local). Portals, emails, and presets each re-declare the defaults in their own format because they render outside that runtime path. There is no shared import binding them, so the only guard against drift is updating every entry in the checklist together.