Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/node_modules/@mui/system/esm/useThemeProps/getThemeProps.js

@@ -0,0 +1,12 @@
+import resolveProps from '@mui/utils/resolveProps';
+export default function getThemeProps(params) {
+  const {
+    theme,
+    name,
+    props
+  } = params;
+  if (!theme || !theme.components || !theme.components[name] || !theme.components[name].defaultProps) {
+    return props;
+  }
+  return resolveProps(theme.components[name].defaultProps, props);
+}

ddb_main/node_modules/@mui/system/esm/useThemeProps/useThemeProps.js

@@ -0,0 +1,21 @@
+'use client';
+
+import getThemeProps from './getThemeProps';
+import useTheme from '../useTheme';
+export default function useThemeProps({
+  props,
+  name,
+  defaultTheme,
+  themeId
+}) {
+  let theme = useTheme(defaultTheme);
+  if (themeId) {
+    theme = theme[themeId] || theme;
+  }
+  const mergedProps = getThemeProps({
+    theme,
+    name,
+    props
+  });
+  return mergedProps;
+}