hi
Let me explain my logo with: Entry #70 you will see the black line forming the letter E which is an outline of a cube - the three dark gray squares are again three sides of a cube ( a cube inside a cube )
In entry Entry #69 - i have the red L as top side of a cube while the dark gray L as another side of a cube - now i hope both these entries will explain the Entry #37 - it takes a while to get the perception : but why a cube ? A cube as a block might some what relate to bricks or building blocks