Invert Colors of Image [JS1]
iOS 15: Works (iOS 15.2 beta 1)
The shortcut converts silently any images received as input, giving them the same name/s.
When run without input, the shortcut works as a demo, allowing the user to select one or more files and showing the result of the conversion.
- No error checking
globalCompositeOperationdocumentation at MDN
Don't download the shortcut
If you just want the code, there's no need to download the shortcut. Copy this and paste it in a "URL" action:
REPLACETHISWITHBASE64IMAGE fragment with the base64-encoded image, add a "Get File of Type" with type
com.apple.webarchive below, and decode the base64 output to get the negated image.
I use "Get File of Type" instead of "Get Contents of Webpage" to avoid that the user is misleading told that the shortcut uses Safari.
Latest Release Notes
1.0.0 - Nov. 8, 2021, 9:12 p.m.
First public version