Issue with image transparency on Rhino 7

Hi, I saw from some other forum posts that to change the opacity of a picture, you can go into the material and edit it from there. When I click the materials button, nothing shows up. I’m running Windows 11 and Rhino 7.21.22208.13001 - any ideas on what’s going on here?

Try looking via the Materials panel instead of the Properties / Material panel.

Anyway, did you check Rhino 7.22 to see if this issue still exists?

this is what i get in the materials panel:

Will try updating to 7.22 to see if that fixes it!