Thanks for sharing this...it reminded me of this product, which I found very interesting: https://www.bhphotovideo.com/c/product/1237741-REG/luxli_orc_viola_5_viola_5_multi_color_on_camera.html I wonder if you're able to get your solution to this level but with a larger panel and softer light source of course. Please keep us informed of your progress.
I know a bit about coding, I wonder if there is something I can help with.