> For the complete documentation index, see [llms.txt](https://kap35.gitbook.io/kap-engine-wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kap35.gitbook.io/kap-engine-wiki/user-manual/graphical-libraries/what-is-it.md).

# What is it ?

### About

Graphical library is used to open windows and display some things inside like rectangles, circles, texts or 3D models.

Everyone prefer a specifics graphical library and because of that, KapEngine add a real new system for this. You can choose your own prefer graphical library to use it.