Horizontally flip background textures on all themes but Desert and City. Also reduce PNG sizes a bit
foreach(dir
Bamboo
Bath
Blox
Cake
Castle
Cheese
Deepspace
City
CrazyMission
EarthRise
Eyes
Freeway
Halloween
Hell
Island
Nature
Planes
Sheep
Snow
Underwater
Compost
Olympics
Desert
)
add_subdirectory(${dir})
endforeach(dir)
install(FILES themes.cfg DESTINATION ${SHAREPATH}Data/Themes)