With this Liquib sample image, the Blaze Effect was applied to a image of complete blackness.  First, eight large Blazes using the Fiery Hoop Blaze Style were placed to overlap each other.  The colors for those were alternately set to the pre-defined Yellow/Red and Brown/Orange pairs.  Then short chains of small Fiery Hoops were added with a variety of colors.  While active, Blaze objects continually shimmer and waver to simulate intense burning.
Liquib Fire Chains