Because:
- Chrome 78 and Firefox Fenix have support for it
- The icons will look better by using all the availiable space
- Admins can control the icon and add appropriate padding since we have a
dedicated asset for the manifest logo. Read more about it on
https://css-tricks.com/maskable-icons-android-adaptive-icons-for-your-pwa/
This commit:
- Adds a new key under the icons array in the webmanifest, named purpose
with maskable value.