typing notif avatars with white background looks a bit weird

[uhoreg]

As shown below:

It looks like trilobite17's face is missing, rather than just being covered up, since arx's avatar has a white background which blends into the background. Perhaps setting the border colour around the avatar to be different from the background colour will help. Or maybe some fancy shadow effect?

[lukebarnard1]

Or maybe some fancy shadow effect?

Interesting idea, might be worth considering. But that particular avatar does look as if it's trying to blend in to the background deliberately.

[ara4n]

honestly this is such an edge case (hah, see what i did there?) i don't think it's worth trying to second-guess the background colour or the border colour. One could conceivably say "if the background of the image is white or transparent, then we should use an inverted border on it", but this then sets a precedent for putting weird borders on avatars in general. I suggest we ignore it unless it really starts to be a pain in the ass.