Designing WordPress Header - Header Art
Header art is a new term at web design field; it is usually handmade and combined of colors, shapes, images and symbols, and text as well. You can create a header art by yourself or to choose a pre-made header art, where all the work is done for you; you just have to select the design matching your website with all the graphics ready to use.
If you want to design the header art by yourself, whatever graphic design software will do: Adobe Photoshop , Adobe Elements, JASC PaintShop Pro, The Gimp and Macromedia Fireworks; although it should be able to resize and manage resolution as well as the type of the image when it is saved. However note that your header art size should match the header container size which you are to put it in.
When creating your own header art, you can use apply any pictures, fonts, photos and images; although save it 'for the web' as gif, png or jpg file. These types of files will compress the resolution of the image and will reduce the size of the file itself. Large sizes slow down the website access times, generally if they are larger than 50K.