Util.cbc stands for (the utilities library's) color by chain. This simply colors molecules by their chains, as the name suggests.
The affects of CBC are shown in the following images.
# simple command util.cbc selection, first_color, quiet # api usage util.cbc(selection='(all)',first_color=7,quiet=1,legacy=0,_self=cmd)
- selection defaults to 'all',
- first_color defaults to 7,
- quiet defaults to 1
# color everything by chain util.cbc