Examine source code of Fresh Knight

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Fresh Knight",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(17, 19, 29)",
      "toolbar_text": "rgb(190, 190, 190)",
      "frame": "rgb(17, 19, 29)",
      "tab_background_text": "rgb(99, 99, 99)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(158, 158, 158)",
      "tab_line": "rgb(101, 0, 0)",
      "popup": "rgb(17, 19, 29)",
      "popup_text": "rgb(170, 170, 170)",
      "icons_attention": "rgb(170, 170, 170)",
      "icons": "rgb(148, 142, 120)",
      "ntp_background": "rgb(17, 19, 29)",
      "ntp_text": "rgb(197, 197, 197)",
      "sidebar_text": "rgb(170, 170, 170)",
      "sidebar": "rgb(17, 19, 29)",
      "tab_background_separator": "rgba(61, 27, 229, 0)",
      "tab_selected": "rgb(0, 0, 0)",
      "toolbar_field_border": "rgba(34, 44, 68, 0)",
      "toolbar_top_separator": "rgba(127, 0, 0, 0)",
      "tab_loading": "rgb(101, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b28ea68f-fde7-4722-bb93-3c5d9982a7bc}"
    }
  }
}