They used programs like GIMP,Paint Shop Pro, and Adobe Photoshop.
GIMP is a (legally) free Open Source image editing program.It's great if you want to edit photos as a hobby,run Linux,or you just don't want to pay a lot of money for an image editing program.
Paint Shop Pro is a cheaper alternative to PhotoShop.It's also great for hobbyists.
Photoshop is the industry standard.If you look at magazines,and lots of other kinds of media, you can see that they all use PhotoShop.
You can go do some research about these programs, because it will take too long to list here, and it would be sort of off-topic.
Those backgrounds were great by the way!
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Congratulations!By reading this signature,KITT's AWESOMENESS has increased by ONE POINT!
So far KITT's power level is OVER 9,000!!!!
Petition #9