rename graphite theme variables for consistency
rename graphite theme variables for consistency

LUMC/gitlabhq,axilleas/gitlabhq,LUMC/gitlabhq,stoplightio/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,mmkassem/gitlabhq,t-zuehlsdorff/gitlabhq,dreampet/gitlab,darkrasid/gitlabhq,LUMC/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,darkrasid/gitlabhq,LUMC/gitlabhq,t-zuehlsdorff/gitlabhq,dreampet/gitlab,iiet/iiet-git,axilleas/gitlabhq,dreampet/gitlab,dplarson/gitlabhq,jirutka/gitlabhq,openwide-java/gitlabhq,darkrasid/gitlabhq,jirutka/gitlabhq,htve/GitlabForChinese,openwide-java/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,htve/GitlabForChinese,jirutka/gitlabhq,iiet/iiet-git,openwide-java/gitlabhq,iiet/iiet-git,dplarson/gitlabhq,darkrasid/gitlabhq,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq,htve/GitlabForChinese,jirutka/gitlabhq,dreampet/gitlab,openwide-java/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,dplarson/gitlabhq,dplarson/gitlabhq