added back setting of ticks colour which had been erroneously removed
added back setting of ticks colour which had been erroneously removed

fixed ScreenToPlot bug, vo needed to be added to the computed coordinates
stevenlovegrove/Pangolin,arpg/Pangolin,renzodenardi/Pangolin,stevenlovegrove/Pangolin,visigoth/Pangolin,tschmidt23/Pangolin,mp3guy/Pangolin,janjachnik/Pangolin,tschmidt23/Pangolin,wxdzju/Pangolin,stevenlovegrove/Pangolin,tschmidt23/Pangolin,contradict/Pangolin,GrimDerp/Pangolin,contradict/Pangolin,mp3guy/Pangolin,GrimDerp/Pangolin,mp3guy/Pangolin,wxdzju/Pangolin,randi120/Pangolin,pinglin/Pangolin,renzodenardi/Pangolin,randi120/Pangolin,visigoth/Pangolin,janjachnik/Pangolin,pinglin/Pangolin,arpg/Pangolin