Hidden Tracking - Appearance Unlock - Hidden - Color 3 (update criteria when world quests available)

once you have obtained a hidden skin, ya can use this macro to check your progress
/run local q,x,_,a,b = GetAchievementCriteriaInfo,0 for i=1,11 do _,_,_,a,b = q(11152,i) x=x+a end local _,_,_,c,d = q(11153,1) local _,_,_,e,f = q(11154,1) print("Dungeons: "..x.."/"..b) print("WQs: "..c.."/"..d) print("Kills: "..e.."/"..f)
the format it prints in your chat box, with your current progress:
Dungeons: 0/100
WQs: 0/200
Kills: 0/1000

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You can use these macros to actually visually track completion progress

200 WQs Hidden Tracking - Appearance Unlock - Hidden - Color 3 (update criteria when world quests available)
/run AddTrackedAchievement(11153)
1000 PKs Hidden Tracking - Appearance Unlock - Hidden - Color 4
/run AddTrackedAchievement(11154)
100 Dungeons Hidden Tracking - Appearance Unlock - Hidden - Color 2
/run AddTrackedAchievement(11152)

Completing a World Quest instantly with the respective order hall advancements (ex. [order-advancement=388]) counts toward this achievement.

I've created a single macro to track dungeon, world quest, and player kill progress.
/run local a={Dungeons=11152,WQs=11153,PKs=11154}for b,c in pairs(a)do local d,e=0;for f=1,GetAchievementNumCriteria(c)do local g,h=0;g,g,g,h,e=GetAchievementCriteriaInfo(c,f)d=d+h end;print(b..": "..d.."/"..e)end

This macro will output something similar to:
PKs: 0/1000
WQs: 0/200
Dungeons: 0/30

Additionally, you can track these hidden achievements.

30 Dungeon Completions (final boss kills) Hidden Tracking - Appearance Unlock - Hidden - Color 2
Keep in mind that dungeons are tracked individually, and the sum of all of the dungeons is what counts for the achievement.
/run C_ContentTracking.StartTracking(2, 11152)

200 World Quests Hidden Tracking - Appearance Unlock - Hidden - Color 3 (update criteria when world quests available)
/run C_ContentTracking.StartTracking(2, 11153)

1000 Player Kills (of any kind) Hidden Tracking - Appearance Unlock - Hidden - Color 4
/run C_ContentTracking.StartTracking(2, 11154)

Please let me know if this helps you out!

Edit: I condensed the macro and included [zone=8443] (and any future dungeons).
Edit 2: Updated achievement tracking code and reflected new 30 dungeon requirement (down from 100).