Thank you for playing! I'm glad you enjoyed it
My original thinking was to make the triangle also work by pressing in a certain corner of the tile, but it was really fiddly. The rectangle was much less fiddly, so I left it. I also chose not to make the rectangle rotate to all 4 positions because I thought it would be confusing and hard to show the player, but it is confusing both ways, so I am rethinking the rectangle for future versions. Thank you for the feedback!