The size of a square. 4 100 20 The width of the playing field. 5 50 10 The height of the playing field. 5 50 10 The number of mines in the playing field. 20 Whether the "uncertain" marker may be used. true Whether the game can be played using the keyboard. false Whether the game is paused when the window loses focus. true Whether to set flags and reveal squares in trivial situations. false The difficulty level. Easy left mid right Mouse button actions Reveal AutoReveal ToggleFlag flag explosion error Color #ff0000 Mine Color #0000ff #008800 #888800 #880088 #ff0000 #880000 #000000 #000000 Whether the menubar is visible. true