Examine source code of GF-S Lilac Splash

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "GF-S Lilac Splash",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(79, 3, 125, 0.4)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(141, 3, 210, 0.5)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(222, 168, 249)",
      "popup": "rgb(82, 2, 143)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgba(222, 168, 249, 0.5)",
      "button_background_hover": "rgb(169, 2, 252)",
      "ntp_background": "rgb(121, 15, 173)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(41, 141, 157)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(144, 2, 215)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(103, 1, 154)",
      "tab_loading": "rgb(222, 252, 163)",
      "tab_selected": "rgba(111, 2, 255, 0.3)",
      "toolbar_bottom_separator": "rgb(169, 2, 252)",
      "toolbar_top_separator": "rgb(169, 2, 252)"
    }
  }
}