Including a drop shadow option of objects added in the editor is a smart and often overlooked feature of other screen capture products, good job! Though while using various object and font sizes as well as choosing white colored fonts and objects it becomes clear that adding an shadow distance adjustment feature would greatly improve visability especially when an object or font of the same color as the captured backgroun (i.e. white) is chosen. Another text/item visability option might be to also include the ability to outline (also known as stroke) the item/text with a selected color outline as an alternative to or including the use of drop shadow.