# openscad > Software for creating solid 3D CAD objects. > More information: . - Open a file: `openscad {{path/to/button.scad}}` - Convert a file to STL: `openscad -o {{path/to/button.stl}} {{path/to/button.scad}}` - Render a file to PNG in a specific colorscheme: `openscad -o {{path/to/button.png}} --colorscheme {{Sunset}} {{path/to/button.scad}}`