If anyone else was confused by the typo, difficult > default.

I’m not sure what to think. On one hand, yes, Google is of course slimy. But if Mozilla loses it’s big source of funding (and crumbles as a result), that may put things in a worse place?

Then again, it’s a shame that the only major competing browser engine is funded by the dominant browser’s company. Maybe Mozilla can be fine without it?

There’s a more direct version of that, I guess from KDE, called KdirStat.

I hadn’t heard of the one in the op. But if I had to guess, it looks like it’s a different take on the same idea.

I don’t have any better tips for getting involved, but I just want to say thanks! OSS clearly needs help from skilled designers all over the place. Any time someone like you steps up, it’s a good thing. n_n