Windows 10: All stock apps have a white box around the icon when in taskbar

Hello TenForums, and actually it's my first time to post here. I've long been a lurker, searching around for solutions and tweaks and stuff, but I decided to register because of a minor, rather OCD-triggering problem.

This has only flared up recently, after applying a registry tweak that allows me to run stock apps on a "Built-in Administrator Account" (idk wtf is that, it's my Microsoft account I'm using to sign in my laptop with, for Pete's sake), plus re-enabling UAC. I don't want to undo the registry tweak, since there are a couple of entries needed to be edited/added, and also that I got back to using Edge because Chrome just got too slow and sluggish for me to browse on.

Here's a screengrab of the taskbar with Edge and Groove Music open:



I know it's just small matters, but man, it sometimes triggers the inner OCD in me... I'm running Windows 10 Home Single-Language x64 ver. 1511 with all latest updates installed.

Anyone know the solution to this?

Regards,
Kensta

:)

 

After Upgrading to The Anniversary all modern apps icons are white

After Upgrading to The Anniversary Win 10 update all modern apps icons on my both PCs became white.

Even in the the taskbar menu the icon for settings is white. They actually have the icon sign which is white, but it's on white background. Edge's sign is blue (on the taskbar) but has a white box background as well. But icons that are white are completely
indistinguishable, and thus almost unusable.

I saw some people report this issue on Win 10, some of them solved it by gaining read access to WindowsApps folder (just by entering it with confirming the access) in Program Files folder. But my system denies any access to it. What should I do, it really
breaks the experience.

Creating a new user leads to the same problem, and I definitely don't use high contrast mode

Please do not suggest Icon cache rebuild, SFC check and the script fixing Modern Apps. I've already tried them all. It's a bug

 

Cortana search box turned white

I have found another temporary and easy alternative remedy to the white search box problem. Right click on the task bar, mouse over "Cortana" in the drop-down menu, and choose "Show Cortana Icon." This will hide the unsightly white
search box, which will now only appear when the Cortana icon on the task bar is clicked. While this won't fix the color of the search box, it will at least spare our eyes from having to see that ugly white box on the taskbar all of the time until Microsoft
(hopefully) eventually corrects the underlying problem.

 

I supposed no one here knows the problem? It's been pushed back two pages.