Instead of tracing around an area of interest, which tool allows you to paint your selection?

In order to have varying degrees of transparency in a single layer...

How can you quickly restore dialogs that have been closed?

What tool can be used to sharpen a slightly blurry image?

What is Dot for Dot mode?

What is the Curves tool used for?

How can you automatically fix an underexposed image?

What are the four selection modes?

How do you delete a guide?

What happens if you paint on a Quickmask with white?

Which of the following are selection tools in GIMP?