This is one of over 5153 textures generated by Filter Forge, a Photoshop plugin that allows you to create your own filters.
With Filter Forge, you can:
To open this filter, you must have Filter Forge 2.0 or higher installed on your computer. If you don't have it installed yet, click here to download Filter Forge
This snippet will let you have non-uniform, random sized bands of 5 colors of your choice.
colors, bars, bands, colours, random, non uniform, vertical, horizontal