View/change preferences:

Square: square size and background colors for letter and fill

Guess: font name, size, color, alignment

Clue#: font name, size for clue number in guess square

Current: highlight color for current letter and word

Check: colors for Incorrect, Corrected, Pencil

Reveal: color for Revealed

CluesKbd: font name, size, color for clues/keyboard at top of puzzle

Skip: enable skipping of empty letters or incomplete words -- and possibly incorrect or uncertain guesses

Set: save any changes