Examine source code of Snakeshead

{
  "manifest_version": 2,
  "version": "3.2",
  "name": "Snakeshead",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(240, 240, 240, 0.20)",
      "toolbar_text": "rgb(240, 240, 240)",
      "frame": "rgb(50, 50, 50)",
      "tab_background_text": "rgb(240, 240, 240)",
      "toolbar_field": "rgb(50, 50, 50)",
      "toolbar_field_text": "rgb(240, 240, 240)",
      "toolbar_field_text_focus": "rgb(240, 240, 240)",
      "toolbar_field_highlight": "rgb(12, 82, 130, 1.0)",
      "toolbar_field_highlight_text": "rgb(240, 240, 240)",
      "toolbar_top_separator": "rgb(52, 56, 84)",
      "toolbar_bottom_separator": "rgb(52, 56, 84)",
      "tab_line": "rgb(52, 56, 84)",
      "popup": "rgb(50, 50, 50)",
      "popup_text": "rgb(240, 240, 240)",
      "ntp_text": "rgb(240, 240, 240)",
      "popup_border": "rgb(128, 128, 128)",
      "tab_loading": "rgb(240, 240, 240)"
    }
  }
}