Examine source code of ProFox

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "ProFox",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(40, 41, 68)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(1, 1, 19)",
      "tab_background_text": "rgb(220, 228, 239)",
      "toolbar_field": "rgb(29, 33, 53)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(7, 63, 217)",
      "popup": "rgb(26, 31, 58)",
      "popup_text": "rgb(215, 226, 239)",
      "icons": "rgb(228, 238, 252)",
      "ntp_background": "rgb(40, 41, 68)",
      "ntp_text": "rgb(215, 226, 239)",
      "tab_selected": "rgba(0, 194, 255, 0.39)",
      "tab_loading": "rgb(7, 63, 217)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{abed6768-757a-4eb6-98ba-d8c004140fad}"
    }
  }
}