I got a Canon Powershot A430 at a thrift store and it worked fine for a few months. But after messing around with the colour highlight/switch settings, my pictures started coming out black embossed looking. I've been messing around with it for a few months now and it seems to be evolving. Every setting besides automatic has this effect, and the quality in automatic is really poor. I have tried doing a factory reset multiple times and it does not appear to change anything.
None of these photos are manipulated: