settings: a Theme status page for unified-desktop-theme

Shows the live scheme, accent and both wallpapers, the scheme and
wallpapers linking to their own pages, then every udt consumer in a
software and a hardware list, each with a Re-apply button running
`install.sh <name>`, and Re-apply all in the header. The list comes from
`install.sh --list`, so a consumer added in unified-desktop-theme shows up
here with no edit. One run at a time, and none during a scheme switch.

QML's JS engine has no Object.fromEntries either: it threw a TypeError
that only reached the log and left the page without its list. Noted in
AGENTS.md beside String.matchAll.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/desktop/modules/appearance/UdtModule.qml b/desktop/modules/appearance/UdtModule.qml
new file mode 100644
index 0000000..3b15c77
--- /dev/null
+++ b/desktop/modules/appearance/UdtModule.qml
@@ -0,0 +1,44 @@
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+import QtQuick
+import "../.."
+
+// What unified-desktop-theme has set, and re-applying it to one consumer.
+Module {
+    name: "udt"
+    label: "Theme status"
+    // nf-fa-sliders, present in Inconsolata Nerd Font.
+    icon: ""
+    settings: true
+    group: "Appearance"
+    keywords: ["consumer", "reapply", "install", "udt", "accent", "wallpaper"]
+    searchItems: Array.from(Udt.consumers).map(n => ({ text: `${n} ${Udt.consumerInfo[n] ?? ""}`, key: n }))
+
+    function refresh() { Udt.refreshStatus(); }
+
+    page: Component {
+        Page {
+            id: page
+            title: "Theme status"
+            actions: Component {
+                Button {
+                    // nf-fa-refresh
+                    icon: "\uf021"
+                    text: Udt.reapplying === "*" ? "Applying…" : "Re-apply all"
+                    enabled: Udt.reapplying === "" && !Udt.applying
+                    onClicked: Udt.reapply("*")
+                }
+            }
+            UdtTab { width: parent.width; onGo: name => page.go(name) }
+        }
+    }
+}