Click here to install the userscript. This generates textures automatically, allows you to set texture preferences in-game and improves rendering of carried flags. Texture preferences must be set on the video settings page, which will open automatically after installation. Custom flags and team colours apply only to group games and must be set on the group page.
If you want to further customize the textures or use them to render replays, you can generate them below. Right click to save.