Once you have entered your text, you may highlight it by double clicking on it. This will highlight your text selection again, allowing you to edit it again. Once you are finished typing, click return or enter on your keyboard to complete your editing. The bounding box will appear over your text again. Text can then be resized, respaced, and curved using the left-hand toolbar.
You may also change the color or the transparency of your text with the left-hand toolbar.