1\. [https://github.com/lc-soft/LCUI](https://github.com/lc-soft/LCUI) LCUI is a C language UI lib which uses XML and CSS to describe interface structure and style. As a result, the UI can be more beautiful.
2\. [https://github.com/ying32/govcl](https://github.com/ying32/govcl)/ a Golang GUI which is built upon Lazarus' liblcl. So it maybe more mature
