Examine source code of Petals

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Petals",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(222, 190, 234)",
      "toolbar_text": "rgb(125, 0, 99)",
      "frame": "rgb(243, 223, 223)",
      "tab_background_text": "rgb(121, 55, 198)",
      "toolbar_field": "rgb(154, 132, 162)",
      "toolbar_field_text": "rgb(125, 0, 99)",
      "tab_line": "rgb(127, 76, 155)",
      "popup": "rgb(205, 192, 210)",
      "popup_text": "rgb(125, 0, 99)",
      "tab_loading": "rgb(127, 76, 155)"
    }
  }
}