extjs7 classic工具栏按钮自定义样式

@include extjs-button-toolbar-small-ui(
        $ui: 'toolbutton', // 自定义的UI名称
        $font-size: 24px,
        $padding: 5px 10px 5px 10px,
        $background-color: transparent,
        $glyph-color: white,
        $border-color: transparent
);

{
	xtype: 'toolbar',
	defaultButtonUI: 'toolbutton-toolbar',
	items:[]
}