Diehard theme (for desktop integration in AVL-MXE)

Hi all, I’ve created a theme for Audacity based on the “AVL-MXE-Diehard-Oomox-Dark-Flat” GTK theme and the “Suru++” icon theme, which are the defaults in AVL-MXE 21.

It works in both Audacity 2.x and 3.x.

Here you can find the relevant screenshots, one using Audacity 2.4.2, the other one using Audacity 3.1.3.

The ImageCache.png file is attached below.