Examine source code of new starry sky

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "new starry sky",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgba(14, 0, 45, 0.24)",
      "toolbar_text": "rgba(255, 122, 255, 0.81)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(79, 225, 255)",
      "toolbar_field": "rgba(0, 13, 55, 0.57)",
      "toolbar_field_text": "rgb(132, 137, 255)",
      "tab_line": "rgb(110, 101, 255)",
      "popup": "rgb(226, 158, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "button_background_active": "rgba(60, 63, 232, 0.68)",
      "button_background_hover": "rgba(28, 60, 165, 0.66)",
      "frame_inactive": "rgb(12, 206, 255)",
      "ntp_background": "rgb(35, 37, 70)",
      "ntp_text": "rgb(226, 158, 255)",
      "popup_highlight_text": "rgb(202, 77, 255)",
      "popup_highlight": "rgba(14, 14, 97, 0.58)",
      "sidebar_border": "rgba(226, 158, 255, 0.8)",
      "sidebar_highlight_text": "rgb(226, 158, 255)",
      "sidebar_highlight": "rgba(123, 164, 255, 0.45)",
      "sidebar_text": "rgb(110, 101, 255)",
      "sidebar": "rgb(23, 26, 99)",
      "tab_background_separator": "rgba(199, 67, 255, 0.85)",
      "tab_loading": "rgb(79, 225, 255)",
      "tab_selected": "rgba(0, 128, 255, 0.22)",
      "tab_text": "rgb(255, 123, 254)",
      "toolbar_bottom_separator": "rgb(215, 124, 255)",
      "toolbar_field_border_focus": "rgb(107, 91, 184)",
      "toolbar_field_border": "rgb(0, 0, 206)",
      "toolbar_field_focus": "rgba(21, 26, 77, 0.89)",
      "toolbar_field_highlight_text": "rgba(31, 31, 198, 0.26)",
      "toolbar_field_separator": "rgba(66, 82, 231, 0.7)",
      "toolbar_top_separator": "rgba(63, 104, 180, 0)",
      "toolbar_vertical_separator": "rgba(51, 60, 193, 0.7)"
    }
  }
}