Add Support for Maskable Android Icons

[RehanSaeed]

See https://css-tricks.com/maskable-icons-android-adaptive-icons-for-your-pwa/

There needs to be a new icon and entry in the manifest.json file:

{
  ...
  "icons": [
    ...
    {
      "src": "path/to/maskable_icon.png",
      "sizes": "196x196",
      "type": "image/png",
      "purpose": "maskable"
  ]
  ...
}

[chrisblakley]

For wider device support, may want to default to "purpose": "any maskable" but this is a great feature request and I hope it gets added soon.

More documentation for others looking to learn about this:
https://web.dev/maskable-icon/

[lucianholt97]

+1

[Andreas-Schoenefeldt]

Hi Team, any update on this? I feel it would be a great feature!

See also: https://css-tricks.com/maskable-icons-android-adaptive-icons-for-your-pwa/