Think of tags as like a book index where you find words and which pages they are on, the same principle applies here. Although it's taken a stage further so it might not be the word, but the subject, so for example if you're looking for things to do with fractal gradients for example. A tag may bring back posts with gradient files, as well as posts that discuss gradients, or tutorials about them.

Metallic Flowers

Metallic Flowers

Script based on a flame by Andrea1981G. Lots of randomization. Enjoy!

mde apophysis

Mde Apophysis

A general purpose, colourful gradient with many narrow stripes and lots of black and darker colours.