Ikea Skadis two-colored 5x5 board

by "two colored" i mean the model is sliced into two matching stl's that are meant to be imported into slicer as a single object with multiple parts, then you can set the color of the 'color feature' object to whatever you want. The color feature object can face either up or down depending on what kind of aesthetic you're going for. this is mostly aimed at printers mith multi material support but can also be done by inserting a custom pause gcode and manually swapping the filament during first layer/s
You can also experiment with adjusting the X/Y expansion setting and printing the board and color feature separately then glueing them together after printing but i didnt test that.

These boards are designed to be coupled together using the included four way coupler which makes it much easier to install, you can screw the boards together using small self tapping wood screws then install it on a wall with just ~1/4 the normal screw count.

I reccomend orienting the color feature side facing down so it will have your print bed texture. However if you're struggling with getting perfect first layer adhesion, the print-bed-facing-approach might be a bad idea as any warping or oozing will show up as ugly blemishes and patches on the exposed side

The board is sized specifically for Bambulab p1s 256mm build plate and it just about cleares the excluded area in the corner, when you import the model into orca/bambustudio, you might get hit with the "too close to exclusion area" error. Then just shift the model to the right top side until the error goes away.
You will have to either disable the prime tower or manually shift and resize it to not interfere with the model.