Examine source code of Dark animated theme 2

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Dark animated theme 2",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 3, 4, 0)",
      "toolbar_text": "rgb(250, 241, 136)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(24, 156, 180)",
      "toolbar_field": "rgba(0, 0, 0, 0.43)",
      "toolbar_field_text": "rgb(3, 249, 249)",
      "tab_line": "rgb(43, 3, 249)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(250, 241, 136)",
      "button_background_active": "rgb(43, 3, 249)",
      "button_background_hover": "rgb(85, 82, 47)",
      "icons_attention": "rgb(1, 208, 73)",
      "icons": "rgb(3, 149, 249)",
      "popup_border": "rgb(43, 3, 249)",
      "tab_loading": "rgb(252, 254, 255)",
      "tab_selected": "rgba(41, 0, 255, 0.67)",
      "tab_text": "rgba(248, 235, 233, 0.99)",
      "toolbar_field_border_focus": "rgb(1, 81, 100)",
      "toolbar_field_focus": "rgba(1, 0, 8, 0.99)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{da8c2869-8930-4b2d-9904-fbfb7ddd7662}"
    }
  }
}