Mandala's GUI - Dark mode

1.20.2, 1.21, 1.20.5, 1.20.2-Snapshot, 1.20.5-Snapshot, 1.20.3-Snapshot, 1.20.3, 1.20.1—1.20, 1.20.6, 1.20.4, 1.21-Snapshot, 1.20-Snapshot

1.19.3, 1.20.2, 1.19.4-Snapshot, 1.20.2-Snapshot, 1.20.5-Snapshot, 1.19.4, 1.20.3-Snapshot, 1.20.3, 1.20.1—1.20, 1.20.4, 1.20-Snapshot, 1.19.3-Snapshot

1.16-Snapshot, 1.17.1, 1.16.3, 1.13.1, 1.15-Snapshot, 1.16.1, 1.18.1, 1.14.4, 1.14.1, 1.17, 1.14.3, 1.15, 1.16, 1.13, 1.19-Snapshot, 1.16.5, 1.18.2, 1.19.2, 1.15.2, 1.14, 1.19.1, 1.17-Snapshot, 1.18, 1.16.4, 1.14.2, 1.18-Snapshot, 1.16.2, 1.12.2, 1.19, 1.13-Snapshot, 1.14-Snapshot, 1.13.2, 1.15.1