Examine source code of Pink planet

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Other Worlds",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(235, 235, 235, 0)",
      "toolbar_text": "rgb(88, 151, 223)",
      "frame": "rgb(248, 241, 211)",
      "tab_background_text": "rgb(240, 140, 40)",
      "toolbar_field": "rgb(248, 241, 211)",
      "toolbar_field_text": "rgb(212, 64, 151)",
      "tab_line": "rgb(255, 51, 51)",
      "popup": "rgb(249, 235, 244)",
      "popup_text": "rgb(212, 64, 151)",
      "button_background_hover": "rgb(238, 190, 219)",
      "icons_attention": "rgb(255, 255, 255)",
      "ntp_background": "rgba(251, 236, 245, 0)",
      "popup_border": "rgb(240, 140, 40)",
      "sidebar_border": "rgb(248, 242, 7)",
      "sidebar_highlight_text": "rgb(249, 235, 244)",
      "sidebar_highlight": "rgb(253, 252, 192)",
      "sidebar_text": "rgb(212, 64, 151)",
      "sidebar": "rgb(248, 241, 211)",
      "tab_background_separator": "rgb(212, 64, 151)",
      "toolbar_bottom_separator": "rgb(212, 64, 151)",
      "toolbar_field_border_focus": "rgb(255, 51, 51)",
      "toolbar_field_border": "rgb(255, 51, 51)",
      "toolbar_field_focus": "rgb(248, 241, 211)",
      "toolbar_field_highlight_text": "rgb(248, 241, 211)",
      "toolbar_field_text_focus": "rgb(212, 64, 151)",
      "toolbar_top_separator": "rgb(255, 51, 51)",
      "tab_loading": "rgb(255, 51, 51)"
    }
  }
}