Examine source code of TKS BrickLeaves

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "TKS BrickLeaves",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png",
        "images/2.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom",
        "right bottom",
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "no-repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(214, 103, 73, 0.66)",
      "toolbar_text": "rgb(251, 249, 247)",
      "frame": "rgb(47, 66, 39)",
      "tab_background_text": "rgb(184, 173, 160)",
      "toolbar_field": "rgb(222, 195, 113)",
      "toolbar_field_text": "rgb(101, 36, 14)",
      "tab_line": "rgb(41, 88, 56)",
      "popup": "rgb(52, 86, 63)",
      "popup_text": "rgb(240, 241, 237)",
      "tab_loading": "rgb(41, 88, 56)"
    }
  }
}