expandable drawing tablet which uses blueprints to configure lamps into different colors, allowing you to draw. you can use it to keep a to do list or just draw a cool mural. if the power draw is too much for your base to handle, you can use the included power throttler blueprint to limit the lamps to around 1-2% of their maximum power draw (keeping them at full brightness for some reason) Read the descriptions on the readme and the power throttler for an explanation of the setup
more colors can be added by adding additional signals to the color encoder combinator with a signal value equal to the RGB/hex of the desired color converted to a number (https://www.dcode.fr/color-in-number). to get lamps on the tablet to use the color just configure their "packed RGB" setting to use the signal you just put in the combinator. make blueprints of that lamp to draw with around the tablet