GitHub:
https://github.com/JujuAdams/Guido/
Example project:
https://github.com/JujuAdams/Guido/releases/download/2.0.0/Guido.2.0.0.example.yyz
Package (for GMS2.2.3+):
https://github.com/JujuAdams/Guido/releases/download/2.0.0/guido_2_0_0.yymp
Guido is a simple GUI framework that offers...