createControllerImp function
        
GLCanvasController
createControllerImp({ 
    
    
- double width = 512,
- double height = 512,
- GLESVersion version = GLESVersion.GLES_20,
Implementation
GLCanvasController createControllerImp({
  double width = 512,
  double height = 512,
  GLESVersion version = GLESVersion.GLES_20,
}) {
  return WebGLCanvasController(
    width: width,
    height: height,
    version: version,
  );
}