Ext.create('Ext.chart.CartesianChart', { renderTo: Ext.getBody(), width: 600, height: 400, title: { text: 'My Chart Title', // Title text style: { fontSize: '16px', // Optional: Set the font size fontWeight: 'bold' // Optional: Make the title bold }, align: 'center' // Optional: Align the title ('left', 'center', 'right') }, sto..

{ xtype: 'panel', width: leftWidth, bodyStyle: 'background-color:black', html: '  Home', listeners: { click: { element: 'el', fn: function() { window.location.reload(); } } }},