thumb|A TRS-80 Color Computer showing significant yellowing thumb|The same computer after treatment, showing yellowing largely reversed
thumb|A TRS-80 Color Computer showing significant yellowing thumb|The same computer after treatment, showing yellowing largely reversed
Retrobright (stylized as retr0bright or Retrobrite) is a hydrogen peroxide-based process for removing yellowing from ABS plastics.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).