Philip posted his simple component size and silkscreen reference board in the project log forum:
since I kept checking old projects to figure out which silkscreens worked, and which didn’t, I made myself a simple reference board. I also included some common SMD component sizes, just to keep me from thinking 0402 was a viable default size.
Via the forum.
The source is Eagle only. But it looks nice. Is there a similar “reference board” in KiCad? I like how it is in Sick of Beige compatible enclosure format.