0.9.0 on Blender 4.2.0 Transfering Weights to Vertex Color issue

[Likeastrike]

Hello, first of all thanks for the addon, it's super useful!

I'm was using Weights to Dst function (0.84 on Blender 2.93) for transfer weights to vertex color RGB channels separately:
Vertex Group 1 -> Red channel
Vertex Group 2 -> Green channel
Vertex Group 3 -> Blue channel

But after switching to a new version (0.9.0 on Blender 4.2.0) I noticed that with the same pipeline, transfered colors became significantly lighter, than I do it on 0.84.

Here's for comparison Maya scene with color values, that must be 0.5 or close.
The left cube from 0.84, and right one from 0.9.0, with the same Weights to Dst pipeline.

Not sure is it bug, or I missing something, but I've tried every possible combination to avoid this, and the result still the same.