Doesn’t affect gameplay at all, but the example cases for calculating critical hits in the code documentation has an error. The dexterity / perception “roll” (one of three rolls that work together) for a character with stats 20/20/20/20 would be at 85% not 100%. It starts at 25% and you would get an extra 20 from the Dex and an extra 40 from the Per.
Would be nice if someone could correct it just for better clarity.