Cody's first version didn't render cleanly. One click to rebuild it — the next attempt usually gets it right.
Unterminated JSX contents. at line 638, column 171
The problem is on this line:
<YAxis stroke="#64748b" style={{ fontSize: '12px' }} label={{ value: 'Retention %', angle: -90, position: 'insideLeft', style: { fontSize: '12px' } }} />