Addon-docs: Show code by default

addons/docs/src/blocks/Canvas.tsx

@@ -57,7 +57,9 @@ const getPreviewProps = (
   return {
     ...props, // pass through columns etc.
     withSource: sourceProps,
-    isExpanded: withSource === SourceState.OPEN,
+    isExpanded: withSource
+      ? withSource === SourceState.OPEN
+      : docsContext?.parameters?.docs?.isExpanded,
   };
 };
 

examples/official-storybook/stories/addon-controls.stories.tsx

@@ -29,7 +29,12 @@ export default {
       },
     },
   },
-  parameters: { chromatic: { disable: true } },
+  parameters: {
+    docs: {
+      isExpanded: false,
+    },
+    chromatic: { disable: true },
+  },
 };
 
 const DEFAULT_NESTED_OBJECT = { a: 4, b: { c: 'hello', d: [1, 2, 3] } };