This is a small update to complement the features introduced in yesterday's major update.
I have added a click-and-drag function to the game area itself. By clicking on an empty space, you can move the camera to change your view of the whole puzzle.
There is also now a zoom-in option, up to 2x zoom.
Apart from these changes, I have fixed some minor group-spacing bugs with the new puzzle board sizes.
Let me know of any problems you experience, or suggestions you have for the game!