Review everything shipped this weekend, and fix what the reviewers caught

Claude-Session: https://claude.ai/code/session_01Ms2FbjQy31TVf3CEvQhGM8

config/dot/quickshell/services/ThemeProfileModel.js

@@ -238,27 +238,29 @@ function normalizeStoredProfile(value) {
     return result;
 }
 
+// The id is the identity here, and every custom id is custom-* namespaced, so
+// it can never collide with a shipped one by accident; a repeat inside the
+// stored list is a genuine duplicate and is dropped.
+//
+// A NAME is only a label, and a colliding one is renamed rather than dropped.
+// Dropping was data loss on a delay: this list is also what gets written back
+// to the preference, so a custom theme whose name a later Panama release
+// happened to ship was silently deleted at the user's next theme edit.
 function validCustomProfiles(values, shipped) {
     if (!Array.isArray(values))
         return [];
 
+    var catalog = shippedList(shipped);
     var ids = {};
-    var names = {};
-    shippedList(shipped).forEach(function(profile) {
-        ids[profile.id] = true;
-        names[profile.name.toLowerCase()] = true;
-    });
+    catalog.forEach(function(profile) { ids[profile.id] = true; });
 
     var result = [];
     values.forEach(function(value) {
         var profile = normalizeStoredProfile(value);
-        if (!profile)
-            return;
-        var foldedName = profile.name.toLowerCase();
-        if (ids[profile.id] || names[foldedName])
+        if (!profile || ids[profile.id])
             return;
         ids[profile.id] = true;
-        names[foldedName] = true;
+        profile.name = uniqueName(profile.name, catalog.concat(result));
         result.push(profile);
     });
     return result;
@@ -537,7 +539,11 @@ function resaturatePalette(palette, factor) {
         var next = clamp(hsv.s * (1 + (scale - 1) * strength), 0, 100);
         result[key] = hsvToHex(hsv.h, next, hsv.v);
     });
-    return result;
+    // Validated on the way out like every other palette this module builds: a
+    // factor that is not a number survives clamp() as NaN and turns every token
+    // into a string no palette reader can use. Returning null makes that a
+    // rejection the caller can see instead of a corrupt theme it stores.
+    return normalizePalette(result);
 }
 
 // Terminal colors for a custom theme that has none of its own: semantic