DAE Mesh export plugin does not write vertex colors

[JohannesMP]

I'm looking to make a mod that modifies models in Untitled Goose Game, so am attempting to export some models.

The game extensively uses vertex colors, as you can for example see when viewing the 'Goosemesh' asset in AssetStudio:

Since OBJ does not natively support vertex colors exporting as that does not work (which is why sadly I cannot use AssetStudio here.

Using the latest stable UABE I was able to select the asset and export it using the DAE plugin, but the resulting file does not contain vertex colors. When viewing the xml data of the file you can see that it only contains data for positions, normals and texture coordinates (UV):

Unfortunately it seems that the repo has removed (or maybe never had) the source code for version 2.2 (I'm using 2.2 stable d because 3.0 beta has been giving me different issues).