====中文==== 用↑↓更改颜色 用←→或鼠标减少或增加对称轴 在s和s2隐藏后才能绘画 用空格清空 ============ ===English=== use↑↓change the color use←→or mouse reduce or increase the Symmetric axis please start painting when the s and s2 is hidden press space to empty ===========
