They link in the same block as the plain-ksys:: Message family. getItemValue and applyScreenFade sit in engine UI TUs, hence ksys::ui. (AI assisted using Claude Fable 5.1 and Claude Opus 5.5)
* TaskMgr, ManagedTask, ManagedTaskHandle * GameTaskThread: partial implementation because PhysicsMemSys / Havok stuff hasn't been decompiled yet and calc_() requires PhysicsMemSys