Examine source code of Tako Theme (Dark)

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Tako Theme (Dark)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png",
        "images/2.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "right top",
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(34, 36, 68)",
      "toolbar_text": "rgb(255, 164, 55)",
      "frame": "rgb(61, 45, 77)",
      "tab_background_text": "rgb(181, 168, 200)",
      "toolbar_field": "rgb(36, 27, 48)",
      "toolbar_field_text": "rgb(220, 200, 245)",
      "tab_line": "rgb(244, 158, 50)",
      "popup": "rgb(57, 42, 74)",
      "popup_text": "rgb(220, 199, 249)",
      "button_background_hover": "rgba(178, 116, 255, 0.25)",
      "icons_attention": "rgb(255, 163, 51)",
      "icons": "rgb(241, 166, 75)",
      "ntp_background": "rgb(38, 23, 48)",
      "popup_highlight_text": "rgb(226, 196, 245)",
      "popup_highlight": "rgb(68, 52, 87)",
      "tab_loading": "rgb(236, 163, 74)",
      "tab_selected": "rgb(31, 11, 45)",
      "tab_text": "rgb(255, 160, 41)",
      "toolbar_field_focus": "rgb(33, 24, 45)",
      "toolbar_field_highlight": "rgba(221, 137, 0, 0.52)",
      "toolbar_top_separator": "rgb(37, 25, 47)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4b14b656-a251-403f-add6-aadf70eab92a}"
    }
  }
}