Led panel painting experiments

So I think I figured out some with painting on these led panels. Basically you can make a thick layer of color underneath. In my case I used blue and green. You “draw” with thye paint based on thickness mainly, since the light will be blocked out equally by any color. For instance, with white, usually you use that to lighten an area, but when painting on an led panel rhat that titanium white is very opaque, so it will actually darken the area. This made me lose my mind on a couple occasions, since the only way to make an area get lighter is to scrape off the paint with sandpaper or a baby wipe. You can also draw like on a scratch board by using a sharp object to scratch off a layer of paint. Then once this is made, you can put a totally different color on top. Like red. But a thin layer. This means that in the light, it will be red, but since it’s such a thin layer, when the leds are turned on, you still will see the majority of the underpainting and the scratched out drawing there.