I am now using Client Paintings for adding new images to my game. So, I want this mod to be officially supported. It will make my city decoration much more beautiful. Thank you so much!

Transparent already supports the mod Paintings ++ that allows you to create custom paintings.

Transparent should work with Client Painting because it should use the vanilla painting rendering.

Looking at Client Painting's code, however, it looks like it renders the paintings itself with a "solid" render layer rather than a translucent one. I could theoretically mixin to the mod and change that, but I would rather their code be changed to work better so I don't need to add mod-compatibility code to my mod.

I will try to contact them and/or submit some code to them for it to work with Transparent.

Correction. I got curious and looked into this (when I probably should have gone to sleep lmao). It is easier for me to change Transparent's code and hook into the render at a later spot and use the texture at that point.

The 2x2 painting on the right is added using Client Paintings.

There is a catch to this. You have to add a blank back image to Client Paintings and set that as the back sprite for any transparent paintings (if you want a blank back, which you probably do).

Then you need to put "back": "clientpaintings:client_paintings/blank" in the painting's json file.

For example:

{
  "texture": "clientpaintings:client_paintings/galaxy",
  "size": [2, 2],
  "back": "clientpaintings:client_paintings/blank"
}

I will upload the updated version tomorrow and will let you know here when it's up.

https://github.com/Trikzon/transparent/assets/29845000/d0dad563-b5a1-4acf-b5fd-dad58c6e2627
You can download the blank.png here ^

oh wow thank you so much!

Should work on the latest version (v6.1.1).
Let me know if you have problems