GraphicDesignerToolbox is described as 'Graphics editor for composing textures, buttons, logos, icons. Uses a building block idea for putting together filters/generators. A rather unique feature is it's vector filters' and is an app in the Photos & Graphics category. There are eight alternatives to GraphicDesignerToolbox for a variety of platforms, including Windows, Linux, Mac, Online / Web-based and iPhone. The best alternative is Material Maker, which is both free and Open Source. Other great apps like GraphicDesignerToolbox are TextureLab (Free, Open Source), Patternshop (Free, Open Source), NeoTextureEdit (Free, Open Source) and FxGen (Free, Open Source).
TextureLab is a tool designed to make procedural texture generation fast, simple and free. It is the first in a line of tools dedicated to make the process of making beautiful textures easy and artist-friendly.
Patternshop is a tool to create textures for fabric design. It functions in a simple and intuitive way. Import your images into the software and they will repeat instantaneously, adjust proportions, while you arrange them and work in real time.
NeoTextureEdit is an open source (GNU LGPL v. 3) easy to use graph-based procedural seamless texture editor. Using continuous basis functions it can generate arbitrary resolution images without quality degradation.