Feature req - invert image colors

[rxiv]

System information

• Windows OS version: Win 11
• ImageGlass version: Version: 9.1.8.723 (64-bit)
• ImageGlass release: Store / Classic? Store on one machine and Classic on this one.

Describe the feature

Do a lot of scanning, editing and viewing of photograph film negatives, would like a quick way to invert the image colors to get a positive for checking scans. Would help as a first-pass through scans to determine if they need to be re-done

How to use feature

Just would like a hotkey to invert color channels - ignoring Alpha. Doesn't need to save it - just view it.

Additional context

Converting This

To This