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Give libadwaita applications the desktop's accent

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Files, Papers, Loupe and every other libadwaita application read their
accent from the Settings portal, so they rendered in GNOME blue no
matter which accent this desktop was set to -- correct on our own
surfaces, wrong on half the screen.

xdg-desktop-portal-gtk cannot serve org.freedesktop.appearance
accent-color at all; the string does not appear in the 1.15.3 binary.
The gnome backend serves it, so Settings now routes to gnome with gtk
still listed behind it -- the frontend merges Settings backends in
order, so color-scheme keeps resolving if the gnome backend is ever
unavailable.

GNOME's accent-color is a fixed enum of nine names rather than a color,
so each of our eight accents carries its nearest member. Nearest by hue
rather than by name: rose maps to red, because it is the red role in
this palette.

Claude-Session: https://claude.ai/code/session_01BRvzt4H8XXLPVH5MyYdk9L
This commit is contained in:
Gabriel Brown
2026-08-19 09:31:50 -04:00
parent 1b94af1163
commit 91306ce810
5 changed files with 198 additions and 18 deletions
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config/dot/quickshell/config/Theme.qml
+15 -8
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@@ -59,15 +59,22 @@ Singleton {
//
// Blue is the shipped Prism -- blue leading, orchid following -- and stays
// the default.
//
// `gnome` is the nearest member of GNOME's own accent-color enum, which is
// a fixed list of nine we do not get to extend. It is what libadwaita
// applications -- Files, Papers, Loupe -- are told to use, so choosing an
// accent here recolors them too instead of leaving them in GNOME blue.
// Nearest by hue, not by name: "rose" maps to red rather than pink because
// it is the red role in this palette.
readonly property var accents: ({
"blue": { dark: "#82aaff", darkSecondary: "#b172b0", light: "#2e7de9", lightSecondary: "#9854f1", label: "Prism blue" },
"orchid": { dark: "#c099ff", darkSecondary: "#fca7ea", light: "#7847bd", lightSecondary: "#9854f1", label: "Orchid" },
"teal": { dark: "#86e1fc", darkSecondary: "#82aaff", light: "#007197", lightSecondary: "#2e7de9", label: "Teal" },
"green": { dark: "#c3e88d", darkSecondary: "#86e1fc", light: "#587539", lightSecondary: "#007197", label: "Green" },
"amber": { dark: "#ffc777", darkSecondary: "#ff966c", light: "#8c6c3e", lightSecondary: "#b15c00", label: "Amber" },
"orange": { dark: "#ff966c", darkSecondary: "#ff757f", light: "#b15c00", lightSecondary: "#c64343", label: "Orange" },
"rose": { dark: "#ff757f", darkSecondary: "#c099ff", light: "#f52a65", lightSecondary: "#9854f1", label: "Rose" },
"slate": { dark: "#828bb8", darkSecondary: "#82aaff", light: "#6172b0", lightSecondary: "#2e7de9", label: "Slate" }
"blue": { dark: "#82aaff", darkSecondary: "#b172b0", light: "#2e7de9", lightSecondary: "#9854f1", label: "Prism blue", gnome: "blue" },
"orchid": { dark: "#c099ff", darkSecondary: "#fca7ea", light: "#7847bd", lightSecondary: "#9854f1", label: "Orchid", gnome: "purple" },
"teal": { dark: "#86e1fc", darkSecondary: "#82aaff", light: "#007197", lightSecondary: "#2e7de9", label: "Teal", gnome: "teal" },
"green": { dark: "#c3e88d", darkSecondary: "#86e1fc", light: "#587539", lightSecondary: "#007197", label: "Green", gnome: "green" },
"amber": { dark: "#ffc777", darkSecondary: "#ff966c", light: "#8c6c3e", lightSecondary: "#b15c00", label: "Amber", gnome: "yellow" },
"orange": { dark: "#ff966c", darkSecondary: "#ff757f", light: "#b15c00", lightSecondary: "#c64343", label: "Orange", gnome: "orange" },
"rose": { dark: "#ff757f", darkSecondary: "#c099ff", light: "#f52a65", lightSecondary: "#9854f1", label: "Rose", gnome: "red" },
"slate": { dark: "#828bb8", darkSecondary: "#82aaff", light: "#6172b0", lightSecondary: "#2e7de9", label: "Slate", gnome: "slate" }
})
// Falls back to blue for an unknown name, so a settings file written by a