first commit

common/resources/client/background-selector/css-props-from-bg-config.ts

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+import {
+  BackgroundSelectorConfig,
+  EditableBackgroundProps,
+} from './background-selector-config';
+
+export function cssPropsFromBgConfig(
+  bgConfig?: Partial<BackgroundSelectorConfig>,
+): EditableBackgroundProps | undefined {
+  if (bgConfig) {
+    return {
+      backgroundImage: bgConfig.backgroundImage,
+      backgroundColor: bgConfig.backgroundColor,
+      backgroundAttachment: bgConfig.backgroundAttachment,
+      backgroundSize: bgConfig.backgroundSize,
+      backgroundRepeat: bgConfig.backgroundRepeat,
+      backgroundPosition: bgConfig.backgroundPosition,
+      color: bgConfig.color,
+    };
+  }
+}