fix(1758): 面积图 line.color 设置不生效的问题

__tests__/bugs/issue-1758-spec.ts

@@ -0,0 +1,21 @@
+import { TinyArea } from '../../src';
+import { createDiv } from '../utils/dom';
+
+describe('#1758', () => {
+  it('area line.color', () => {
+    const tinyArea = new TinyArea(createDiv('mini 面积图 color 配置不生效'), {
+      height: 60,
+      width: 300,
+      autoFit: false,
+      data: new Array(100).fill(0).map(() => Math.random() * 100),
+      smooth: true,
+      line: {
+        color: 'red',
+      },
+    });
+
+    tinyArea.render();
+
+    expect(tinyArea.chart.geometries[1].elements[0].container.getChildByIndex(0).attr('stroke')).toBe('red');
+  });
+});

src/plots/tiny-area/index.ts

@@ -23,9 +23,7 @@ export class TinyArea extends Plot<TinyAreaOptions> {
       },
       line: {
         size: 1,
-        style: {
-          stroke: '#5B8FF9',
-        },
+        color: '#5B8FF9',
       },
     };
   }