What does this button do? (Patreon)

OK, first post. This page is slightly akward - I keep typing $1 into the suggested patronage box, but Patreon suggests $200 per page, which is way too much. Er - unless you actually have that much to spare. Heh! But I doubt Bill Gates spends much time on Patreon. I suppose I'll eventually figure out how to use this-all to best effect. Nothing to lose, more art-time to gain. I'd be a churl to complain about minor stumbles.