fix: 修复一些demo的小问题 (#1676)

Author: arcsin1

examples/column/stacked/demo/basic.ts

@@ -99,7 +99,7 @@ const stackedColumnPlot = new Column('container', {
   xField: 'year',
   yField: 'value',
   seriesField: 'type',
-  color: ['#1ca9e6', '#f88c24'],
+  color: ['#ae331b', '#1a6179'],
 });
 
 stackedColumnPlot.render();

examples/line/multiple/demo/line-label.ts

@@ -17,6 +17,13 @@ fetch('https://gw.alipayobjects.com/os/bmw-prod/e00d52f4-2fa6-47ee-a0d7-105dd95b
         position: 'top',
       },
       smooth: true,
+      // @TODO 后续会换一种动画方式
+      animation: {
+        appear: {
+          animation: 'path-in',
+          duration: 5000,
+        },
+      },
     });
 
     linePlot.render();