@Oliver R. thanks your advise! that's useful .Some details has been changed. I let the board look flat and change the micphone icon,hyphen also. I will try my best to let's look comfortable!!
http://hi.baidu.com/qwsketching/item/59e02389e02691fbd0f8cd7a That's full preview!
keyboard shortcuts: ← previous shot → next shot L or F like Z toggle zoom