Pixel-Composer/shaders/sh_grey_alpha/sh_grey_alpha.yy

{
  "resourceType": "GMShader",
  "resourceVersion": "1.0",
  "name": "sh_grey_alpha",
  "parent": {
    "name": "color",
    "path": "folders/shader/filter/color.yy",
  },
  "type": 1,
}