Changed the color of a few pins: SCL, SDA, MISO, MOSI. Much purdier now.
Labeled pins more accurately (the friendly name is friendlier).
Renamed pin group E to "GPIO Bank" per @jiahuang.
GPIO Bank is now in two columns, resembling the physical layout. Also, feng shui.
Added the notion of "chips"; added microcontroller, flash, RAM, & Wi-Fi.
Changed default scale to be roughly the same height as the rest of the UI.