bug4997-custom版

src/views/ppt_manage/mixins/pptMixins.js

@@ -844,7 +844,9 @@ export default {
             // 查找class为'background'的rect元素并修改fill属性
             let rectElement = svgDoc.querySelector('rect.highcharts-plot-background');
             if (rectElement) {
-                rectElement.setAttribute('fill', plotBackgroundColor);
+                //transparent(生成的图表背景会变黑) -> rgba(255, 255, 255, 0)
+                let currentColor = plotBackgroundColor==='transparent'?'rgba(255, 255, 255, 0)':plotBackgroundColor
+                rectElement.setAttribute('fill', currentColor);
             }
             // 将修改后的SVG文档转换回字符串
             let serializer = new XMLSerializer();