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.

jwfs bluedivide

Blue Depth

Blue flame, this uses Parplot and a series of Glynnsim to fill in the centres of the flame. Experiment by changing the preset ID of the parplot, but remember to adjust the weight of the parplot, as different presets display differently.