agesci.css is meant to be used standalone or in combination with Bootstrap.
palette.css contains color variables.
It’s available a palette file to be used in the Adobe CS/CC (AGESCI.ase)
agesci.css contains .text-, .border- and .bg- which set respectivly text, border and background colour.
The classes are made appenfing the following colour names to the prefixes (.text-, .border- and .bg-)

Source: AGESCI