Complete the Panama theme system

config/dot/quickshell/config/PreferenceSchema.qml

@@ -975,6 +975,19 @@ Singleton {
                 { value: "slate", label: "Slate" }
             ]
         },
+        {
+            key: "themeProfileId", type: "string", def: "moon", group: "appearance",
+            pattern: "^[a-z0-9][a-z0-9-]{0,63}$",
+            label: "Selected theme profile",
+            detail: "The shipped or saved theme currently applied to the desktop",
+            internal: true
+        },
+        {
+            key: "themeProfiles", type: "json", def: [], group: "appearance",
+            label: "Saved theme profiles",
+            detail: "Named custom colour schemes and accent pairs",
+            internal: true
+        },
 
         // ── Application themes ─────────────────────────────────────────────
         // ColorScheme owns GTK's light/dark theme. These are the two theme

config/dot/quickshell/config/Theme.qml

@@ -14,6 +14,7 @@ import Quickshell
 // QtQuick is required even though nothing visual is declared here: `color` is a
 // QtQuick value type, and Qt.rgba() lives in its JS namespace.
 import QtQuick
+import qs.services
 
 Singleton {
     id: root
@@ -60,30 +61,20 @@ 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
+    // The table itself lives in services/ThemeProfileModel.js so a curated
+    // accent and a custom profile are the same kind of record. Its `gnome`
+    // member is the nearest name in 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", 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" }
-    })
+    readonly property var accents: ThemeProfiles.curatedAccents
+    readonly property var activeProfile: ThemeProfiles.activeProfile
 
-    // Falls back to blue for an unknown name, so a settings file written by a
-    // newer Panama -- or edited by hand -- degrades to the shipped identity
-    // rather than to an undefined color.
-    readonly property var accentPair: root.accents[DesktopPreferences.get("accentName")] ?? root.accents["blue"]
-
-    readonly property color accent: root.dark ? root.accentPair.dark : root.accentPair.light
-    readonly property color accentSecondary: root.dark ? root.accentPair.darkSecondary : root.accentPair.lightSecondary
+    // ThemeProfiles validates every persisted record before it can become
+    // active, so these bindings are both reactive and safe to expose as the
+    // shell-wide colour roles.
+    readonly property color accent: root.activeProfile.accent
+    readonly property color accentSecondary: root.activeProfile.secondary
     readonly property color accentAlt: root.dark ? "#65bcff" : "#007197" // blue1, a lighter blue
     readonly property color cyan: root.dark ? "#86e1fc" : "#007197"
     readonly property color teal: root.dark ? "#4fd6be" : "#118c74"