Merge branch 'master' into schema-view-En-Hua

1 files changed, 4 insertions, 2 deletions

diff --git a/src/client/views/nodes/CollectionFreeFormDocumentView.tsx b/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
index 092823603..9cc4b1f9a 100644
--- a/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
+++ b/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
@@ -17,8 +17,8 @@ import { InkingStroke } from "../InkingStroke";
 import { StyleProp } from "../StyleProvider";
 import "./CollectionFreeFormDocumentView.scss";
 import { DocumentView, DocumentViewProps } from "./DocumentView";
-import { FieldViewProps } from "./FieldView";
 import React = require("react");
+import Color = require("color");
 
 export interface CollectionFreeFormDocumentViewProps extends DocumentViewProps {
     dataProvider?: (doc: Doc, replica: string) => { x: number, y: number, zIndex?: number, opacity?: number, highlight?: boolean, z: number, transition?: string } | undefined;
@@ -164,6 +164,8 @@ export class CollectionFreeFormDocumentView extends DocComponent<CollectionFreeF
             PanelWidth: this.panelWidth,
             PanelHeight: this.panelHeight,
         };
+        const background = this.props.styleProvider?.(this.rootDoc, this.props, StyleProp.BackgroundColor);
+        const mixBlendMode = StrCast(this.layoutDoc.mixBlendMode) as any || (background && Color(background).alpha() !== 1 ? "multiply" : undefined);
         return <div className={"collectionFreeFormDocumentView-container"}
             style={{
                 outline: this.Highlight ? "orange solid 2px" : "",
@@ -172,7 +174,7 @@ export class CollectionFreeFormDocumentView extends DocComponent<CollectionFreeF
                 transform: this.transform,
                 transition: this.props.dataTransition ? this.props.dataTransition : this.dataProvider ? this.dataProvider.transition : StrCast(this.layoutDoc.dataTransition),
                 zIndex: this.ZInd,
-                mixBlendMode: StrCast(this.layoutDoc.mixBlendMode) as any,
+                mixBlendMode,
                 display: this.ZInd === -99 ? "none" : undefined
             }} >
             <DocumentView {...divProps} ref={action((r: DocumentView | null) => this._contentView = r)} />