[Feature] 饼图标签的连接线支持函数样式

Version

1.11.5

Link to Minimal Reproduction

null

Steps to Reproduce

期望能实现连接线和文字颜色不一样

const spec = {
type: 'pie',
data: [
{
id: 'id0',
values: [
{ type: 'oxygen', value: '46.60' },
{ type: 'silicon', value: '27.72' },
{ type: 'aluminum', value: '8.13' },
{ type: 'iron', value: '5' },
{ type: 'calcium', value: '3.63' },
{ type: 'sodium', value: '2.83' },
{ type: 'potassium', value: '2.59' },
{ type: 'others', value: '3.5' }
]
}
],
outerRadius: 0.8,
valueField: 'value',
categoryField: 'type',
title: {
visible: true,
text: 'Statistics of Surface Element Content'
},
legends: {
visible: true,
orient: 'left'
},
label: {
visible: true,
style: {
fill: 'black'
},
line: {
style: {
stroke: ()=>{
return 'red'
}
},
// style: ()=>{
// return {
// stroke: 'red'
// }
// }
}
},
tooltip: {
mark: {
content: [
{
key: datum => datum['type'],
value: datum => datum['value'] + '%'
}
]
}
}
};

const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderSync();

// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;

Current Behavior

Expected Behavior

链接先可以单独应用一个颜色

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response