Alt-text: "Okay, maybe sometimes not so sparsely ..."
Updated on 2018-01-04: I thought about keeping the original bubble outlines from here on and just replace the text itself, but the bubbles where still pretty jittery at this point, and it would've looked awkward together with the clean(-ish) computer font, I guess. So I'll continue to draw over strangly shaped hand-drawn bubbles and try to make it look like the shape is intended ;)