Ignoring fully transparent pixels

[yavko]

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I'd like to use this to modify images to put in my wallpapers, that have transparent bgs

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to not fill up transparent pixels, but to ignore them

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maybe just a option for it

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[ozwaldorf]

Definitely agree, transparency should be handled properly, although I've been a bit undecided on how to handle it. I think the easiest way would be to always use an alpha layer when reading and writing images, and retain the previous alpha values when writing to the new image. The only issue with that, is that the output image sizes might inflate even more, especially for non-transparent images. Currently, lutgen just reads the image and converts it into an RGB type, not RGBA

[ozwaldorf]

Check out https://github.com/ozwaldorf/lutgen-rs/tree/transparency

Or, to install the development branch:

cargo install lutgen --git https://github.com/ozwaldorf/lutgen-rs --branch transparency

[donovanglover]

Transparency branch works great with icon themes, thanks. Would love to see it merged 👍

[yavko]

Transparency branch works great with icon themes, thanks. Would love to see it merged 👍

That's a great idea, what icon packs have you tried?

[donovanglover]

https://github.com/vinceliuice/Fluent-icon-theme

Note: I converted svg to png first (svg panics as unsupported)

[Jas-SinghFSU]

How are you using lutgen to ignore transparent background? I ran the cargo install command stated above and ran

lutgen apply *.png -p catppuccin-mocha

But the transparent background gets replaced still.

Edit: Scratch that, found it:

lutgen apply *.png -p catppuccin-mocha --transparency