arrow_double.png source=PhET
arrow_single.png source=PhET
battery.png source=PhET notes=reused from faraday
lightBulbBase.png source=PhET notes=reused from faraday
lightBulbGlass.png source=PhET notes=reused from faraday
lightBulbGlassMask.png source=PhET notes=reused from faraday
lightBulbMask.png source=PhET notes=masked version of lightBulbGlass.png
