▁used ▁to ▁develop ▁video ▁games ▁for ▁PC , ▁cons oles , ▁mobile ▁devices ▁and ▁websites . ▁ ▁Image ▁processing ▁▁ ▁A For ge . NET ▁a ▁computer ▁vision ▁and ▁artificial ▁intelligence ▁library . ▁It ▁implements ▁a ▁number ▁of ▁image ▁processing ▁algorithms ▁and ▁filters . ▁It ▁is ▁released ▁under ▁the ▁L G PL v 3 ▁and ▁partly ▁G PL v 3 ▁license . ▁Major ity ▁of ▁the ▁library ▁is ▁written ▁in ▁C # ▁and ▁thus ▁cross - platform . ▁Function ality ▁of ▁A For ge . NET ▁has ▁been ▁extended ▁by ▁the ▁Acc ord . NET ▁library . ▁Acc ord . NET ▁another ▁computer ▁vision ▁and ▁artificial ▁intelligence ▁library , ▁available ▁under ▁the ▁G nu ▁L esser ▁General ▁Public ▁License , ▁version ▁ 2 . 1 . ▁It ▁is ▁mainly ▁written ▁in ▁C # . ▁ ▁Graph ical ▁user ▁interface ▁ ▁Open - source ▁GUI ▁▁ ▁G tk # : C # ▁wra ppers ▁around ▁the ▁underlying ▁GT K + ▁and ▁G NO ME ▁libraries , ▁written ▁in ▁C ▁and ▁available ▁on ▁Linux , ▁Mac OS ▁and ▁Windows . ▁Windows ▁Form s ▁Microsoft ' s ▁GUI ▁framework . ▁The ▁original ▁Microsoft ▁implementation ▁runs ▁on ▁Windows ▁operating ▁systems ▁and ▁provides ▁access ▁to ▁Windows ▁User ▁Interface ▁Common ▁Control s ▁by ▁wrapping ▁the ▁Windows ▁API ▁in ▁managed ▁code . ▁The ▁alternative ▁Mon o ' s ▁implementation ▁is ▁open ▁source ▁and ▁cross - platform ▁( it ▁runs ▁on ▁Windows , ▁Linux , ▁Unix ▁and ▁OS ▁X ). ▁It ▁is ▁mainly ▁compatible ▁with ▁the ▁original ▁implementation ▁but ▁not ▁completely