Shadow color through transparent object

Are there plans to introduce filtering of the color of the shadow cast from an object with refraction or other transparency? Like if it is red the color of the shadow will be red … etc.

Not planned, but as you mentioned in the discord the refraction can have dithered shadows due to a bug.
I need to think what I’ll do about it, right now the dithered shadows is driven by the opacity slider, which is disabled for refraction.