Examine source code of Elegant blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Elegant blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-036-40a272fe657f748396e017c7a64ee2dc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(34, 67, 80)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(180, 240, 255)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(35, 205, 179)",
      "popup": "rgb(27, 40, 45)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(42, 71, 79)",
      "frame_inactive": "rgb(0, 0, 0)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(74, 90, 110)",
      "ntp_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(35, 205, 179)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f7ae052a-4c66-492e-b737-1a2b094a7e47}"
    }
  }
}