See the screenshot attached below. Without the backdrop that vanilla has/had, the looks of this movie seem a little weird/off, with the sharp edges between the movie and the actual map in the background etc. This is from arena_perks, probably the same happens with other intro movies from other maps/gamemodes but I haven't checked.
The default background for the movies does not match the flawhud theme. The current iteration aligns with other menus seen when entering a map so it will not be changed.
See the screenshot attached below. Without the backdrop that vanilla has/had, the looks of this movie seem a little weird/off, with the sharp edges between the movie and the actual map in the background etc. This is from arena_perks, probably the same happens with other intro movies from other maps/gamemodes but I haven't checked.