Actions: Refresh zoom icons at 16px

[newhoa]

Use semi-transparent borders, use gradient for fill, add highlight inset border, adjust rounded edges to match curves of other similar action icons. Should look a little smoother. And sharper on dark backgrounds.

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Current:

Proposed:

[waldyrious]

IMHO the current version has better contrast; not sure the highlight is a net positive. No opinion on the other changes, though I welcome improved sharpness in dark mode :)

[micahilbery]

It looks like we lost quite a bit of border radius here compared to other tile icons at this size. I think I would base these on categories/16/applications-other to make sure we're being consistent there

While we're here, I wonder if we should change these glyphs to be more contrasty as well like:

The border is a big improvement, but I agree. I think they are too pointy now and I also agree that they should be more contrasty.