Alembicons

Alembicons is an Android application from kaanelloed for creating icon packs, released under the GPL-3.0-only licence. Icon pack creation, in general terms, means pairing icon artwork with the applications installed on a device and packaging the result in a form a launcher can read. Alembicons is also described as a companion to the Arcticons icon set, so the expected starting point is an existing set of icons rather than artwork drawn from scratch.

Because icon packs are read by the home screen launcher and not by Android itself, the visible result depends on which launcher is installed and how much of a pack that launcher supports. Elements the launcher does not take from a pack stay as they were.

The facts here list Android as the only platform, so both the building and the use of a pack happen on the phone or tablet, with no desktop editor in the picture. How much of the pack contents you supply yourself, and how much comes from Arcticons, is not spelled out in the listing.