let amaral = new Image();
amaral.src = 'static/amaral.jpg';
const keyboard = new headbreaker.Canvas('keyboard-canvas', {
width: 800, height: 650, pieceSize: 60,
image: amaral, strokeWidth: 2.5, strokeColor: '#F0F0F0',
outline: new headbreaker.outline.Rounded()
keyboard.adjustImagesToPuzzleWidth();
horizontalPiecesCount: 6,
insertsGenerator: headbreaker.generators.random
// make canvas focusable and listen
// to ctrl and shift keys in order to force
// pieces to be dragged individually or as a whole,
keyboard.registerKeyboardGestures();