To open the configuration dialog use the → menu item, on macOS use the → menu item, or you can use the button in the toolbar.

- Computer Player
The Computer Player 1 and 2 panels control the skill level of each computer player's play and whether that player should actually play instead of the human or just provide hints when asked. Normally you would set the computer to play one player and you would play the other, but you can have two human players or two computer players and just watch.
- Board
The Board panel allows you to chose the initial layout of the board, with options for different sizes and different obstacle layouts.
- Theme
The Theme dropdown lets you chose a different look for the tiles.
- Players' Colors
Choose a color for the tiles of each player and for the obstacles.