inconsistent rendering of profile image underglow

[wakest]

here is how https://degrowth.social/@yala's profile looks (they seem to have a profile picture of a single pixel png:

heres what mine looks like which is also a transparent png (I think it looks good)

heres @cheeaun's which has the cool underglow from the header image

and here is one that has barely no underglow https://mastodon.social/@mntmn

[cheeaun]

The avatar "glow" colors are based on (lower corners of) the header image. If extracted colors from header image are dark, they'll be dark "glows", which will look more like drop shadows, and… disappears on darker backgrounds 😆

Here's how mntmn's profile look like on light mode:

Obviously, more advanced color manipulation work is needed, for all the various header + avatar image combos + dark/light mode.