Edit in JSFiddle

Crafty.init(400, 200);
Crafty.background('#333');

// Exemplo de texto desenhado com Canvas
var canvasText = Crafty.e('Canvas, Text');

canvasText.attr({
    x: 10,
    y: 30,
    w: 100,
    h: 20
})
.text(Crafty.getVersion())
.textColor('#ff0000')
.textFont({
    size: '3em'
});