點D顏色就係支筆的顏色！ 點橡皮擦掉筆劃 點垃圾桶就—全—部—冇—哂～ 點彩虹 開彩虹模式 可以調節寬度！
v1.0 Added More pen Colour , eraser and rubbish bin v1.1 Remake colour board and added rainbow mode v1.2 added custom colour and pen switch v1.2.1 fixed custom colour bug v1.2.2 fixed bug
