Examine source code of Cool green neon

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cool green neon",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(217, 255, 0)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(0, 247, 0)",
      "toolbar_field": "rgb(3, 3, 3)",
      "toolbar_field_text": "rgb(0, 226, 101)",
      "tab_line": "rgb(26, 22, 22)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(59, 225, 23)",
      "button_background_active": "rgb(255, 255, 255)",
      "button_background_hover": "rgba(155, 159, 44, 0.78)",
      "frame_inactive": "rgb(3, 3, 3)",
      "icons_attention": "rgb(39, 221, 0)",
      "icons": "rgb(70, 240, 95)",
      "ntp_background": "rgb(21, 23, 21)",
      "ntp_text": "rgb(0, 200, 47)",
      "popup_border": "rgb(0, 187, 39)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(0, 170, 0)",
      "sidebar_highlight_text": "rgb(19, 249, 76)",
      "sidebar": "rgb(49, 55, 49)",
      "tab_background_separator": "rgb(0, 255, 0)",
      "tab_loading": "rgb(225, 255, 0)",
      "tab_selected": "rgb(18, 97, 22)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(21, 255, 49)",
      "toolbar_field_border_focus": "rgb(226, 255, 0)",
      "toolbar_field_border": "rgba(30, 255, 0, 0.37)",
      "toolbar_field_focus": "rgba(34, 34, 34, 0.37)",
      "toolbar_field_highlight_text": "rgba(255, 255, 255, 0.37)",
      "toolbar_field_highlight": "rgba(255, 252, 2, 0.22)",
      "toolbar_field_separator": "rgba(30, 255, 0, 0.37)",
      "toolbar_field_text_focus": "rgba(47, 244, 21, 0.37)",
      "toolbar_top_separator": "rgba(0, 0, 0, 0.99)",
      "toolbar_vertical_separator": "rgba(30, 249, 1, 0.37)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5508bfa8-a9db-4fb3-9517-83224fe49620}"
    }
  }
}