[Request] Ability to change the folder color

[xilopaint]

Would it be possible to add the ability of changing the folder color like this App Store application?

[lgarron]

This has come up before. I could use some help figuring out:

• Whether a hue shift is close enough to make the regular folder look like the purple smart folder, and to cover most colors that people would want.
• A representative hue to assign to the default folder, and what color space is best to use.
• How to implement hue shift that works well for both dark and light mode.

If hue shifting is not enough, then I need help figuring out how to support a wider range of colors without easily generating undesirable output (e.g. too low-contrast).

[CurbaiCode]

I've found that a great way to change the color of a folder is to use a layer of any color with its blend mode set to Color over a desaturated folder image in Photoshop. Seeing as Folderify has ImageMagick as a dependency, I tried to match the same effect with it.
Creating an .iconset with Folderify and then running mogrify -colorspace Gray -fill '[INSERT COLOR]' -tint 100 *.png on the .png files inside is very close, although a bit too light. And to try to combat saturation issues, I came up with mogrify -colorspace Gray -modulate 95 -fill '[INSERT COLOR]' -tint 100 -modulate 105.2631578947,115 *.png (105.2631578947 = 1/0.95).
Hope this helps!