> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/guides/maintain/retrobrighting.md). # Retrobright to handle yellowed plastic ## Restoring yellowed-plastic If you are buying a very old drawing tablet, the plastic may have shifted colors and turned more yellow over time. Below are two Wacom GP-300E pens compared. Both come from the original Wacom Intuos Line released in 1998. The one on top has a typical look of the pen when it was released. The one on the bottom exhibits moderate yellowing.

This color change may be reversed or reduced through a process called **retrobright**. The video below provides clear instructions on how to perform the retrobright process. {% embed url="" %} ## Resources