But you have to go to a separate program to design the graphics, yes, and the graphics are raster-based rather than vector-based.
While it's easier to just use raster-based graphics when you're using FlashDevelop, you can do vector-based graphics with some effort. These ways include: - Import a SWF (created by someone else in Flash or another tool) and use those vector-based graphics within FlashDevelop. - Import an SVG (created by a vector-based drawing program; Inkscape is a popular free option). - Create the vector graphics via code. AS3 provides the appropriate methods to create vector-based drawings. However, since you're doing everything via code and numbers, this generally works best for simple geometric stuff.