Pixel-Composer/shaders/sh_blend_subtract/sh_blend_subtract.yy

{
  "resourceType": "GMShader",
  "resourceVersion": "1.0",
  "name": "sh_blend_subtract",
  "type": 1,
  "parent": {
    "name": "blend",
    "path": "folders/shader/blend.yy",
  },
}