Here is a good start. I met with mike this weekend in Portland, and we discussed the mathematical properties of the Hubski logo. We had a bet about the areas of the center circle, and the outer circles. Mike thought that they center circle area was greater than that of the outer ones. I guessed the opposite. He still owes me lunch. Anyway, the truth was surprisingly close. Therefore we sat down and devised a balanced version, and perfected the distances with math as well. Here it is: The area of the satellite circles equals the middle circle area. The distance from the edge of the inner circle to the middle of an outer one is equal to the diameter of the inner circle. The colors are: #8097A4 (128,151,164), #F37901 (243,121,1), #10BDBB (16,189,187), although I sometimes adjust them depending on the purpose. The font is Trebuchet.