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/icons-material/Add.js

@@ -0,0 +1,13 @@
+"use strict";
+"use client";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _createSvgIcon = _interopRequireDefault(require("./utils/createSvgIcon"));
+var _jsxRuntime = require("react/jsx-runtime");
+var _default = exports.default = (0, _createSvgIcon.default)( /*#__PURE__*/(0, _jsxRuntime.jsx)("path", {
+  d: "M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6z"
+}), 'Add');