I wonder how long those increments will be, releasing sections of the WinUI Code. 24H2 used to be Harder but not impossible to Fully Skin All Areas, Now Its Much Easier. I Think Maybe they thought Customizers Would Just Swallow them making things harder to Skin, But As We Know Customizers Will and have always found ways of giving themselves A Better Looking Desktop. Windhawk Has Really Took Off Allowing Users To Cherry Pick What They Like About MS OSs , and then use those Mods to Re Create The Best Parts, then incorporate them into The Latest Windows OS.

Users Will Always Push Back, as they do not like being told to Do This Or Do That, MS Removed The Win 10 Taskbar From Later Editions of Win 11, So Program Creators Released Software To Bring It Back etc. etc.

I am not saying MS have listened, as we know they Do Not Have Ears, but no matter the reason, Its Good For Us.  

WinUI is not the UI for everything in the OS.  It is purely a layer some apps can use for app development if they wish.

Thanks Neil. Could you explain this in a little more detail. Perhaps an example.