Thank you!
I made the entire theme from scratch so to speak. I copied the default aero theme from Windows 10 FCU to a separate folder, injected all the new elements into it, changed other elements (Font colors mostly and some other basics), then replaced it (in windows\resources....). I saved the original aero theme in a back up for just in case. All with Windows Style Builder and Photoshop.
As for the icons, up button and removal of the Views and Help button in the command bar, those are accomplished by editing the shell32.dll.mui file in the system32\en-us and syswow64\en-us folders. Basically creating icon image class entries to overwrite the class entry for those specific icons in the actual shell32.dll file. Because you cannot edit the shell32.dll file directly, or windows will not load. However the imageres.dll file you can which must be done in both System32 and SysWow64. Then simply deleting iconcache and using Disk Cleanup to delete cached thumbnails will reset all the icons. (Took me a while to figure that out).
I suppose I could share. I've not shared my themes before. Just have to make sure to warn people of the risks and all that which I don't like to think of being responsible for if someone corrupts their system. Though I've done it to myself a number of times, I've learned almost every possible way to fix it, even from boot up into troubleshooting options you can access the file system on any installation of windows to revert files back (provided that you rename the original files to something like imageres.dll_ORIG). You basically choose restore from System Image, then choose Install device drivers, choose browse, and you can access your windows directory. It will be a different disk than the one you're using to load the startup with. I use a USB with a copy of Windows 10 Install on it. (ISO to usb sort of thing).
I will consider putting this on my Deviantart page in the customization themes section.