Thanks @Janne for your design ! I love it, but it felt a bit inconvenient starting at the first layer with the numbers, because they messed my bottom layer up…

So here ist my remixed version. One solid file. Easy to paint in your slicer for using a MMU / AMS… 

I provide two slightly different stl files with flat numbers exept those on the 0.2mm tabs, -use the one that works best for you . 

…or choose the the version with all raised up numbers for readability if you prefere printing in single color…