"xtype" : "Column",
"$ xns" : "Roo.bootstrap",
"items" : [
+ {
+ "String size" : "sm",
+ "String weight" : "warning",
+ "xtype" : "Button",
+ "$ xns" : "Roo.bootstrap",
+ "String html" : "Some text"
+ },
{
"String size" : "sm",
"String weight" : "warning",