Changelog:
- Added zoom limit (don't worry, it's far)
- Finally fixed poor scaling appearance with new scaling algorithm
- Added update checking on about page
- Fixed border being shown around images at 100% zoom
- Removed cursor option due to being confusing and pointless
- Fixed image disappearing after first zoom
- Fixed text on color selection button
- Added show in explorer/finder button
- Added option to disable bilinear filtering
- Added option to disable new scaling algorithm
- Fixed program behavior and icons on Linux
- Restyled about dialog including mac-specific font sizes