Outline System for Gamemaker 2.3+

Shader based outline system for text, sprites and surfaces

• Outline and inline with fully customizable thickness
• Controllable color and alpha for both image and outline
• Tolerance level for transparent pixels
• Modifiable outline resolution (useful for small sprites)
• "Round" level if you want a rounded or squarer outline
• Simplified usage, a single function already creates the desired effect
• Three types of function, each with its recommended use
• All documentation is well written and included in the package, along with a demo scene set up
  
  

The package is avaliable on the YoYo Games Marketplace too. Here is the link.

The sprites used in the demonstration are from https://www.kenney.nl/assets