gistfile1.js

var colors = ['#555', '#666', '#777', '#888', '#999'];
var baseColor = '#eee';

Ext.define('Ext.chart.theme.Fancy', {
    extend: 'Ext.chart.theme.Base',
    constructor: function(config) {
        this.callParent(Ext.apply({
            axis: {
                fill: baseColor,
                stroke: baseColor
            },
            axisLabelLeft: {
                fill: baseColor
            },
            axisLabelBottom: {
                fill: baseColor
            },
            axisTitleLeft: {
                fill: baseColor
            },
            axisTitleBottom: {
                fill: baseColor
            },
            colors: colors
        },
        config));
    }
});