Grabbed dndbeyond's source code

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

ddb_main/tools/js/smartComponents/Icons/ProficiencyLevelIcon/HalfProficiencyIcon/HalfProficiencyIcon.tsx

@@ -0,0 +1,46 @@
+import * as React from "react";
+
+import { Tooltip } from "@dndbeyond/character-common-components/es";
+import {
+  CharacterTheme,
+  Constants,
+} from "@dndbeyond/character-rules-engine/es";
+
+import { ModifiedProficiencyHalfSvg, ProficiencyHalfSvg } from "../../../Svg";
+
+interface Props {
+  isModified: boolean;
+  className: string;
+  theme?: CharacterTheme;
+}
+
+export default class HalfProficiencyIcon extends React.PureComponent<Props> {
+  static defaultProps = {
+    isModified: false,
+    className: "",
+  };
+
+  render() {
+    const { isModified, className, theme } = this.props;
+
+    let IconComponent: React.ComponentType<any> = isModified
+      ? ModifiedProficiencyHalfSvg
+      : ProficiencyHalfSvg;
+    let classNames: Array<string> = ["ddbc-half-proficiency-icon", className];
+    if (isModified) {
+      classNames.push("ddbc-half-proficiency-icon--modified");
+    }
+    let fillColor;
+    if (theme?.isDarkMode) {
+      fillColor = isModified
+        ? Constants.CharacterColorEnum.DARKMODE_TEXT
+        : theme?.themeColor;
+    }
+
+    return (
+      <Tooltip title="Half Proficiency" isDarkMode={theme?.isDarkMode}>
+        <IconComponent className={classNames.join(" ")} fillColor={fillColor} />
+      </Tooltip>
+    );
+  }
+}

ddb_main/tools/js/smartComponents/Icons/ProficiencyLevelIcon/HalfProficiencyIcon/index.ts

@@ -0,0 +1,4 @@
+import HalfProficiencyIcon from "./HalfProficiencyIcon";
+
+export default HalfProficiencyIcon;
+export { HalfProficiencyIcon };