Guppy v28.1

Minor update:

v28.1

- fixed: camera moving away from lvl edge when zooming

- fixed: player hiding offscreen at lvl edges

- gamepad Retry prompt says A instead of R

- fixed: P2 music cues not resetting on restart

- tweaks to fly spawn rate

- fixed: incorrect program icon shown on title bar (windows)

- fixed libpng issue (android)

If you're curious about the development process check out the TIGS devlog.