Examine source code of Bery Berry!

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Bery Berry! 1.1",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(251, 30, 86)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(255, 14, 90)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 221, 236)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(4, 4, 6)",
      "button_background_active": "rgb(156, 7, 54)",
      "button_background_hover": "rgb(156, 7, 54)",
      "sidebar_border": "rgb(255, 14, 90)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(183, 13, 67)",
      "sidebar_text": "rgb(255, 56, 81)",
      "sidebar": "rgb(255, 244, 245)",
      "tab_selected": "rgb(255, 0, 82)",
      "toolbar_field_border_focus": "rgb(14, 10, 49)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(14, 10, 49)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  }
}