Examine source code of Space Age Animated

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Space Age",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(32, 32, 42, 0)",
      "toolbar_text": "rgb(48, 87, 106)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(59, 127, 159, 0.57)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(48, 87, 106)",
      "popup_text": "rgb(255, 255, 255)",
      "icons": "rgba(240, 240, 240, 0.95)",
      "ntp_text": "rgba(236, 236, 236, 0.95)",
      "popup_highlight_text": "rgb(233, 104, 233)",
      "popup_highlight": "rgb(20, 20, 20)",
      "sidebar_highlight_text": "rgb(233, 104, 233)",
      "sidebar_highlight": "rgb(21, 21, 21)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(48, 87, 106)",
      "tab_loading": "rgba(93, 142, 182, 0.95)",
      "tab_selected": "rgb(244, 244, 244)",
      "toolbar_bottom_separator": "rgba(93, 142, 182, 0.95)",
      "toolbar_field_border_focus": "rgba(93, 142, 182, 0.95)",
      "toolbar_field_border": "rgba(93, 142, 182, 0.95)",
      "toolbar_field_separator": "rgba(93, 142, 182, 0.95)",
      "toolbar_top_separator": "rgba(93, 142, 182, 0.95)"
    }
  }
}