Examine source code of Gradient Lush Berries

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Lush Berries",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(247, 255, 247, 0)",
      "toolbar_text": "rgb(250, 243, 240)",
      "frame": "rgb(220, 163, 175)",
      "tab_background_text": "rgb(240, 219, 209)",
      "toolbar_field": "rgb(56, 38, 73)",
      "toolbar_field_text": "rgb(250, 243, 240)",
      "tab_line": "rgb(250, 243, 240)",
      "popup": "rgb(31, 32, 65)",
      "popup_text": "rgb(242, 223, 215)",
      "button_background_active": "rgb(106, 50, 88)",
      "button_background_hover": "rgb(31, 32, 65)",
      "icons_attention": "rgb(250, 243, 240)",
      "icons": "rgb(220, 163, 175)",
      "popup_highlight_text": "rgb(31, 32, 65)",
      "popup_highlight": "rgb(220, 163, 175)",
      "sidebar_border": "rgba(31, 32, 65, 0)",
      "sidebar_highlight_text": "rgb(81, 44, 80)",
      "sidebar_highlight": "rgb(250, 243, 240)",
      "sidebar_text": "rgb(31, 32, 65)",
      "sidebar": "rgb(199, 107, 141)",
      "tab_text": "rgb(250, 243, 240)",
      "toolbar_bottom_separator": "rgba(250, 243, 240, 0)",
      "toolbar_field_border_focus": "rgb(31, 32, 65)",
      "toolbar_field_border": "rgba(250, 243, 240, 0)",
      "toolbar_field_focus": "rgb(250, 243, 240)",
      "toolbar_field_highlight_text": "rgb(31, 32, 65)",
      "toolbar_field_highlight": "rgb(220, 163, 175)",
      "toolbar_field_text_focus": "rgb(31, 32, 65)",
      "toolbar_top_separator": "rgba(0, 68, 69, 0)",
      "toolbar_vertical_separator": "rgba(255, 255, 255, 0)",
      "tab_loading": "rgb(250, 243, 240)"
    }
  }
}