image2icon

Install command: 
brew install --cask image2icon

Name: Image2Icon

Icon creator and file and folder customiser

https://www.img2icnsapp.com/

Cask JSON API: /api/cask/image2icon.json

Cask code: image2icon.rb on GitHub

Current version: 2.17

Requirements: macOS >= 10.11

Analytics:

Installs (30 days)
image2icon 25
Installs (90 days)
image2icon 105
Installs (365 days)
image2icon 457