Add colour variables, replace absolute declarations with references to variables
Add colour variables, replace absolute declarations with references to variables

olineham/morebetter-theme,mysociety/asknepal-theme,nzherald/fyi-theme,nzherald/fyi-theme,openaustralia/righttoknow,mimesbronn/alavetelitheme,nztu/nztu-theme,nzherald/fyi-theme,nztu/nztu-theme,openaustralia/righttoknow,olineham/morebetter-theme,mysociety/bilmehakki-theme,slygent/accessinfohktheme,mysociety/alavetelitheme,mysociety/bilmehakki-theme,mimesbronn/alavetelitheme,mysociety/alavetelitheme,nikeshbalami/asknepal-theme,slygent/accessinfohktheme,nikeshbalami/asknepal-theme,openaustralia/righttoknow,mysociety/asknepal-theme,olineham/morebetter-theme