I correct myself (again). PNG won't work either. What I noticed is that QuestMap has two icon sets. One set that work and one that does not. The sets are defined like this:
Code:
--[[
Quest Map
by CaptainBlagbird
https://github.com/CaptainBlagbird
--]]
QuestMap.iconSets = {
QuestMap = {"QuestMap/icons/pinQuestUncompleted.dds", "QuestMap/icons/pinQuestCompleted.dds"},
ESO = {"/esoui/art/floatingmarkers/quest_available_icon.dds", "/esoui/art/icons/achievements_indexicon_quests_down.dds"},
The 2nd set works. I have been looking for the files mentioned but could not find them anywhere. But I noticed that those file too are DDS files. I suspect they are part of the system.
Looking deeper I noticed that with Direct3D 10 the DDS format was changed / extended.
So could it be that macOS can't load the newest format? And how can I could I convert them to an older format?