Examine source code of Space Cotton

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Space Cotton",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(49, 42, 68, 0.96)",
      "toolbar_text": "rgb(113, 226, 208)",
      "frame": "rgb(98, 206, 189)",
      "tab_background_text": "rgb(207, 96, 255)",
      "toolbar_field": "rgba(72, 56, 157, 0.69)",
      "toolbar_field_text": "rgb(113, 226, 208)",
      "tab_line": "rgb(98, 206, 189)",
      "popup": "rgb(49, 25, 124)",
      "popup_text": "rgb(5, 255, 255)",
      "button_background_active": "rgb(25, 41, 124)",
      "frame_inactive": "rgb(110, 91, 199)",
      "icons_attention": "rgb(125, 22, 227)",
      "icons": "rgb(207, 96, 255)",
      "popup_border": "rgb(130, 0, 252)",
      "sidebar_border": "rgb(113, 226, 208)",
      "sidebar_highlight": "rgb(42, 130, 130)",
      "sidebar": "rgb(26, 151, 151)",
      "tab_background_separator": "rgb(42, 130, 130)",
      "toolbar_field_highlight_text": "rgb(225, 228, 232)",
      "toolbar_field_highlight": "rgb(120, 17, 229)",
      "tab_loading": "rgb(98, 206, 189)"
    }
  }
}