I'm not good with color symbolism, so I just adopted the
colors that other people mentioned.

Here's my primary candidate: "Exchange"

The curvy arrowy things symbolize communication,
the exchange of information, the most basic
feature of language.  The brilliant spark
represents ideas, inspiration, creativity, and
also looks a lot like a compass rose, reminding
us of the many corners of this world where we
come from, and the many worlds we made up our-

Another idea: "Rise"

The bridge as a symbol of outreach and exchange
between individuals, cultures and nations.
Might be better suited for an auxlang.  =P  The
arrangement of colors is supposed to suggest an
impending sunrise, a hopeful speculation at a
rise in popularity and acceptance of our art.

-- Christian Thalmann