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I love the design - very clean, well-chosen font, simply executed.
I just had one idea for you - if you were to use the "spark" design by itself with no text to help out, could you somehow put a "north" mark on the top of it? Like make the icon double as both a spark and a compass rose. I've attached an image of what I mean.
It might make it more meaningful.

Hmm, I like this idea. I originally started off by using a compass as my first design. Couldn't make it fit so I went with a "cold" spark. I might play around with this a bit. Very much appreciated. Thank you.