Where has "invert colors" gone in the new MS Paint?

I'm wondering where the old "invert colors" feature from MS Paint has gone. My new version of MS Paint 6.1 doesn't seem to have this feature?

2 Answers

Actually, the option still exists, but it's not found on the ribbon. You can only find it when right-clicking an image:

Rightclick

The result:

Everything inverted

If you select everything or nothing, the entire image is inverted. Else, only the selection gets inverted:

Rightclick on selection

The result:

Partial inversion

You can use the keyboard shortcut Ctrl+Shift+I.