Document theme file support

[milnak]

Themes repo is here

Arcade2, Arcade3, Comic2, Tron have marquee support

arcade2, arcade3: 155x35
comic2: marquee 135x30

marquee files should be put in rpi2jamma/marquees/[romname].png

Arcade2, Comic2, Tron have logo support:

arcade2, tron: 0x0 ?
comic2: 120x30

logo files should be put in rpi2jamma/logos/[romname].png

Arcade3, Comic2, Tron have bezel support

arcade3, comic2: 150x133
tron: 180x120

bezel files should be put in rpi2jamma/bezels/[romname].png

Arcade3, Comic2, Tron have details (buttons) support

arcade3, tron: 0x0 ?
comic2: 153x74

detail files should be put in rpi2jamma/buttons/[romname].png

Arcade3, Comic2, Tron have video support

arcade3: 118x87
comic2: 153x110
tron: 136x120

video files should be put in rpi2jamma/videos/[romname].mp4

[milnak]

forgot to mention there's /snaps/[romname].png support as well (for all themes)

[arcadeforge]

And there is the possibility to provide own system core snap putting them in theme folder/menu