Examine source code of Sparkling clouds

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sparkling clouds",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(198, 162, 222, 0.36)",
      "toolbar_text": "rgba(221, 192, 241, 0.75)",
      "frame": "rgb(236, 207, 244)",
      "tab_background_text": "rgb(176, 138, 204)",
      "toolbar_field": "rgba(218, 195, 230, 0.29)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.35)",
      "tab_line": "rgba(185, 156, 222, 0.57)",
      "popup": "rgba(211, 165, 221, 0.29)",
      "popup_text": "rgba(216, 181, 241, 0.66)",
      "button_background_hover": "rgba(81, 69, 150, 0.43)",
      "icons_attention": "rgba(194, 163, 232, 0.58)",
      "icons": "rgba(194, 126, 221, 0.65)",
      "tab_background_separator": "rgba(169, 115, 185, 0.48)",
      "tab_loading": "rgba(202, 176, 240, 0.44)",
      "tab_selected": "rgba(172, 114, 219, 0.39)",
      "tab_text": "rgba(129, 93, 158, 0.59)",
      "toolbar_bottom_separator": "rgba(240, 168, 248, 0.61)",
      "toolbar_field_border_focus": "rgba(213, 172, 249, 0.72)",
      "toolbar_field_border": "rgba(204, 150, 219, 0.61)",
      "toolbar_field_focus": "rgba(195, 138, 247, 0.61)",
      "toolbar_field_highlight_text": "rgba(218, 182, 242, 0.61)",
      "toolbar_field_highlight": "rgba(208, 167, 215, 0.48)",
      "toolbar_field_separator": "rgba(189, 164, 236, 0.36)",
      "toolbar_field_text_focus": "rgba(146, 107, 180, 0.61)",
      "toolbar_top_separator": "rgba(176, 147, 218, 0.57)",
      "toolbar_vertical_separator": "rgba(189, 148, 215, 0.61)"
    }
  }
}