Custom Macro Icons Blurry in `Trigger Macro by Name`

Questions & Suggestions
1

See here for custom icon (original size is 1024x1024 px):

CleanShot 2021-04-05 at 20.17.10@2x
CleanShot 2021-04-05 at 20.17.10@2x1580×860 89.4 KB

Versus... using a macOS app icon:

CleanShot 2021-04-05 at 20.17.15@2x
CleanShot 2021-04-05 at 20.17.15@2x1580×860 89.7 KB

Versus... using an SF Symbol:

CleanShot 2021-04-05 at 20.17.23@2x
CleanShot 2021-04-05 at 20.17.23@2x1580×860 88.8 KB