Examine source code of Blue and Terra

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue and terra",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-030-0f935cfde055600d01a959c5c15353de.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(90, 90, 60)",
      "toolbar_text": "rgb(177, 185, 110)",
      "frame": "rgb(28, 157, 178)",
      "tab_background_text": "rgb(237, 242, 198)",
      "toolbar_field": "rgb(141, 150, 49)",
      "toolbar_field_text": "rgb(37, 215, 240)",
      "tab_line": "rgb(185, 193, 127)",
      "popup": "rgb(141, 150, 49)",
      "popup_text": "rgb(64, 227, 250)",
      "button_background_active": "rgb(237, 111, 20)",
      "button_background_hover": "rgb(88, 241, 62)",
      "frame_inactive": "rgb(64, 227, 250)",
      "icons_attention": "rgb(77, 237, 48)",
      "icons": "rgb(181, 195, 67)",
      "ntp_background": "rgb(150, 215, 225)",
      "ntp_text": "rgb(7, 20, 56)",
      "popup_border": "rgb(92, 233, 67)",
      "popup_highlight_text": "rgb(237, 242, 198)",
      "popup_highlight": "rgb(133, 167, 89)",
      "sidebar_border": "rgb(91, 201, 70)",
      "sidebar_highlight_text": "rgb(90, 90, 60)",
      "sidebar_highlight": "rgb(92, 233, 67)",
      "sidebar_text": "rgb(64, 227, 250)",
      "sidebar": "rgb(141, 150, 49)",
      "tab_background_separator": "rgb(77, 237, 48)",
      "tab_loading": "rgb(92, 233, 67)",
      "tab_text": "rgb(237, 242, 198)",
      "toolbar_bottom_separator": "rgb(237, 111, 20)",
      "toolbar_field_border_focus": "rgb(92, 233, 67)",
      "toolbar_field_border": "rgb(77, 237, 48)",
      "toolbar_field_focus": "rgb(90, 90, 60)",
      "toolbar_field_highlight_text": "rgb(237, 242, 198)",
      "toolbar_field_highlight": "rgb(107, 157, 164)",
      "toolbar_field_separator": "rgb(77, 237, 48)",
      "toolbar_field_text_focus": "rgb(249, 250, 238)",
      "toolbar_top_separator": "rgb(24, 192, 219)",
      "toolbar_vertical_separator": "rgb(237, 111, 20)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5540ca39-accf-4c7b-aebf-be71c10f9a11}"
    }
  }
}