There is no minimum size of the window for the maze, so currently the player can make the window smaller than the maze itself.
Fixes
Add a minimum size for the window that is dependent on the size of the maze. Maybe also make the minimum size of the maze dependent only on the rows and columns of the maze so that there is no extra space in the window. The size of the maze then can scale up as the window gets larger.
Issue
There is no minimum size of the window for the maze, so currently the player can make the window smaller than the maze itself.
Fixes
Add a minimum size for the window that is dependent on the size of the maze. Maybe also make the minimum size of the maze dependent only on the rows and columns of the maze so that there is no extra space in the window. The size of the maze then can scale up as the window gets larger.
Estimate 100 points