{ "widgettype":"ResponsableBox", "options":{ "width":"100%", "height":"100%", "overflow":"auto", "bgcolor":"#6f6f6f" }, "subwidgets":[ { "widgettype":"VBox", "options":{ "width":"300px", "height":"300px", "bgcolor":"#f9f9f9", "color":"#3f3f3f", "flexShrink":0, "margin":"4px" } }, { "widgettype":"VBox", "options":{ "width":"300px", "height":"300px", "bgcolor":"#f9f9f9", "color":"#3f3f3f", "flexShrink":0, "margin":"4px" } }, { "widgettype":"VBox", "options":{ "width":"300px", "height":"300px", "bgcolor":"#f9f9f9", "color":"#3f3f3f", "flexShrink":0, "margin":"4px" } } ] }