mutter-performance-source/tests/conform/scripts/test-script-single.json

{
  "type" : "ClutterRectangle",
  "id" : "test",
  "width" : 50.0,
  "height" : 100.0,
  "x" : 100.0,
  "y" : 100.0,
  "color" : "#ffccdd",
  "name" : "Test Rectangle"
}