Imports github.com/go-gl/gl/v4.2-core/gl github.com/go-gl/glfw/v3.3/glfw github.com/golang/freetype/truetype golang.org/x/image/font golang.org/x/image/font/gofont/gomono golang.org/x/image/math/fixed Standard library imports errors fmt image image/color image/draw math runtime strconv strings sync