Examine source code of Green Caves Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Green Caves",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0.18)",
      "toolbar_text": "rgba(255, 255, 255, 0.54)",
      "frame": "rgb(104, 104, 104)",
      "tab_background_text": "rgb(116, 116, 116)",
      "toolbar_field": "rgba(0, 0, 0, 0.2)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.83)",
      "tab_line": "rgba(255, 255, 255, 0.27)",
      "popup": "rgba(226, 226, 226, 0.94)",
      "popup_text": "rgba(50, 83, 51, 0.8)",
      "button_background_active": "rgba(33, 57, 17, 0.5)",
      "button_background_hover": "rgba(255, 255, 255, 0.1)",
      "frame_inactive": "rgb(86, 86, 86)",
      "icons_attention": "rgba(108, 134, 94, 0.9)",
      "icons": "rgba(255, 255, 255, 0.4)",
      "ntp_background": "rgba(55, 55, 55, 0.75)",
      "ntp_text": "rgb(181, 181, 181)",
      "popup_border": "rgba(159, 159, 159, 0.9)",
      "sidebar_border": "rgb(62, 66, 62)",
      "sidebar_highlight_text": "rgba(255, 255, 255, 0.9)",
      "sidebar_highlight": "rgb(70, 85, 66)",
      "sidebar_text": "rgba(255, 255, 255, 0.7)",
      "sidebar": "rgb(86, 86, 86)",
      "toolbar_field_border_focus": "rgba(62, 78, 57, 0.7)",
      "toolbar_field_focus": "rgba(43, 44, 43, 0.95)",
      "toolbar_field_highlight_text": "rgba(247, 247, 247, 0.9)",
      "toolbar_field_highlight": "rgba(49, 68, 43, 0.95)",
      "toolbar_field_text_focus": "rgba(255, 255, 255, 0.7)",
      "tab_loading": "rgba(255, 255, 255, 0.27)"
    }
  }
}