Hello LittleStain thanks for answering
Well as far as I tested it, with Construct 2 behavior I can only do something like that :
A hole in the dark. But I just want something like that :
(for the example only, so some light source which provides an ambient light, not a hole...I know this screen doesn't have a real light it's more like a painting or something. It's just to show you the idea, the master words are ambient light
.) I don't know if it's possible. If It's not I'll just fake it by making a glow-thing with Photoshop and use it on my lamps, like that :
But I would like to have a "real" light.