The green box appear angled out from the yellow box and embedded in it.

transform: translateZ(-100px) rotateY(45deg);
{
  "bounds": [800, 600],
  "children": [
    {
      "bounds": [800, 600],
      "contentsOpaque": true,
      "drawsContent": true,
      "children": [
        {
          "position": [108, 72],
          "bounds": [304, 304],
          "drawsContent": true,
          "children": [
            {
              "bounds": [304, 304],
              "shouldFlattenTransform": false,
              "transform": [
                [1, 0, 0, 0],
                [0, 1, 0, 0],
                [0, 0, 1, -0.002],
                [0, 0, 0, 1]
              ],
              "children": [
                {
                  "position": [12, 12],
                  "bounds": [280, 280],
                  "opacity": 0.800000011920929,
                  "contentsOpaque": true,
                  "shouldFlattenTransform": false,
                  "3dRenderingContext": 1,
                  "drawsContent": true,
                  "backgroundColor": "#FFFF00",
                  "transform": [
                    [0.766044443118978, -0.556670399226419, -0.32139380484327, 0],
                    [0, 0.5, -0.866025403784439, 0],
                    [0.642787609686539, 0.663413948168938, 0.383022221559489, 0],
                    [0, 0, 0, 1]
                  ],
                  "children": [
                    {
                      "position": [40, 40],
                      "bounds": [200, 200],
                      "opacity": 0.699999988079071,
                      "contentsOpaque": true,
                      "3dRenderingContext": 1,
                      "drawsContent": true,
                      "backgroundColor": "#008000",
                      "transform": [
                        [0.766044443118978, 0, 0.642787609686539, 0],
                        [0, 1, 0, 0],
                        [-0.642787609686539, 0, 0.766044443118978, 0],
                        [0, 0, 50, 1]
                      ]
                    }
                  ]
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}