Thanks! Well, kind of. The JSX is mostly for making the apps that comprise gamemaker components, like pico8's spritemaker and mapmaker tabs. Once those apps are made, you can use them to make game assets. But those apps run in the same canvas that games would run in. A mapmaker and a game would use the same GUI for drawing into the canvas. But a game would probably create a single View and override its draw method to draw most of the game, though it could use JSX to build up the views that comprise game panels like Minecraft's inventory views.