extjs中怎样为一个panel设置背景色？？？

是这样设置 bodyStyle: 'background:#ffc; padding:10px;',
var resultsPanel = Ext.create('Ext.panel.Panel', {
title: 'Results',
width: 600,
height: 400,
renderTo: Ext.getBody(),
bodyStyle: 'background:#ffc; padding:10px;',
layout: {
type: 'vbox', // Arrange child items vertically
align: 'stretch', // Each takes up full width
padding: 5
},
items: [{ // Results grid specified as a config object with an xtype of 'grid'
xtype: 'grid',
columns: [{header: 'Column One'}], // One header just for show. There's no data,
store: Ext.create('Ext.data.ArrayStore', {}), // A dummy empty data store
flex: 1 // Use 1/3 of Container's height (hint to Box layout)
}, {
xtype: 'splitter' // A splitter between the two child items
}, { // Details Panel specified as a config object (no xtype defaults to 'panel').
title: 'Details',
bodyPadding: 10,
items: [{
fieldLabel: 'Data item',
xtype: 'textfield'
}], // An array of form fields
flex: 2 // Use 2/3 of Container's height (hint to Box layout)
}]
});

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