My Windows 10 setup, made to look like Win XP.

Thanks to OrthodoxWin32 I now have an Embedded theme. I modified some things like the explorer toolbar background and DWMWindow which didn't have any changes added to that. It isn't complete, I do need to change more things in it and the start menu.

Back on Noir using travis' modified theme!
Also using SIB++ for the taskbar now.

To fix the titlebar text color problem. You need to delete or rename this registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes\DefaultColors

You'll have to take ownership of the registry key first, you can google how to do that.

As for the basicthemer thing you can make a task in Task Scheduler to open basicthemer2 automatically on startup, or put a shortcut to it in the startup folder. You can go to it by going to Run and typing in shell:startup.
I am too lazy to make a guide for the file explorer.  

You can use ExplorerPatcher's implementation of the weather applet, it looks good with the XP taskbar

How did he made it?

holy shit man i love all of these xp transformations. As a person who grew up with xp you dont know how much these recreations of the themes and xp look make me happy. 2023 is off to a great start i suppose. But truely i give you kudos for making 10 look that damn close to xp.

Regarding the black screen of death I've been having: I wanted to note that I am using Project2k, modified by me to look like Windows XP.

Today I downloaded a Windows 10 LTSC 21H2 ISO (same version as Project2k) from the microsoft website and ran it in a VM, I did all the procedures to get the Windows XP theme up and going, and it actually worked! I don't really know why, probably Project2k had some stuff on it that caused Windows to freak out or something? Idk, but it's still good news

I might just reinstall Windows 10 LTSC without Project2k, and theme it all over again, I got nothing to lose anyways

Note: I will have to redownload the Windows 10 LTSC 21H2 ISO, probably from a 3th party website, cuz the one I got from Microsoft is apperently just an evaluation version, which means that there's no way for me to activate it, therefore no way for me to remove the black title bar text. But, anyways, it shouldn't be too much of a problem, I doubt that the evaluation version of the ISO has something (or lacks something) that makes the theme work without giving me a black screen of death.
(btw, if you're wondering how I applied the Windows XP theme without windows being activated, I simply applied it using the SecureUxTheme Patcher, since you can apply themes directly from their tool without needing to activate anything)

Best of luck to me, and thank you all for your continued help.