Dishwasher Clean/Dirty Sign with angled backplate and no magnet holes

@MrGzeng_244433 made an excellent remix of the backplate for @ALX_1707's very clever clean/dirty sign for a dishwasher. The part of my dishwasher where I want to stick the sign isn't magnetic, so I'm planning on using command strips. The magnet holes in the backplate keep the command strips from working well, so I've removed them and saved anyone else who wants to try a few minutes in the slicer :) Without magnet holes you might also be able to get away with printing the face that goes against the dishwasher on the bottom (that's the chamfered one). I imagine that'll help with command strip stickiness.