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On Friday, December 9, 2016 at 2:36:23 AM UTC-8, Kolen Cheung wrote:

Another idea is to base the logo on a well-estabished one, see below.

I think colors should be added, then the shape changed in a way looks more like Pd. The shape emphasize a duality, just like in pandoc, for any 2 given formats, you (usually) can go back and forth between them (another way of saying $\forall \delta_i, \delta_j \in \Delta, \text{pandoc}_{ij}: \delta_i \rightarrow \delta_j$ )

One possible variation of the shape is the outer border becomes a square, giving a much more distinct yet familiar look.