I'm using xcode 7, and learning ios development from the Stanford open class. The teacher is using the xcode6 to build a calculator, he can add the (+, -, x & division sign) in the button, but in xcode 7 i can't find these character from the Edit->Special Characters. But there have 4 characters in bold and black. I can't set the color to blue. Is this a change in xcode7? How can i add the +-x% in the same font and style as the number buttons? Please help. Thanks.
Open Edit -> Emoji & Symbols.
Can you see a symbol at the right-up corner?
Click it, and it is going to be the traditional interface.