There are various side effects, from what I know. I'm still waiting for someone to port Windows 7 and Windows 8.1 Default themes, can't stand the visual style of Windows 10. And I thought 8 was bad.
Just a heads up the msstyles in windows 10 has changed a lot from windows 8.1 there is a high risk you'll get a black screen which you'll need to restore back before applying the theme to get out of.
Now all we really need is to figure out themeing of the start button, and stopping the lag inside the menu as a result.
It's because this is a "theming" topic and I've showed it before in an attachment, but I guess the attachment did not work. I'm porting the Win8.x theme That's why Windows 10 is so crappy and mainly the Start Menu, Jump View, Clock Flyout, They're all buggy, slow and unresposive, makes me want to smash the PC into bits. I bet the taskbar is there too, it does not get effected by changing the theme. So far in XAML: Start Menu (XAML Continuum) | Win32 Code has been deleted as of any build past 9879/9926. Jump View (Not sure if old can be reverted) Clock Flyout (Not sure if old can be reverted) Volume Adjust Flyout (Can be reverted to Win32/original by Reghack) Taskbar (?) They did this all clearly on purpose, how is XAML better than the default Nature of Win32? But they also probably did this to prevent people from having custom themes.
Search Winaero.com for an article titled 'get colored title bars in windows 10'. It doesn't say it's for RTM, but it still works. It's not a perfect solution though.
I don't think it's about the XAML framework, usually it is quite responsive and fast but since it's all graphics accelerated, I guess faulty/non-optimized drivers play a big role in the game. After all, it's using DirectX for rendering. The Windows 10 inbox theme isn't so bad, except for two things that bother me: White titlebars, and the captions are too small. Fortunately, the hack to get the colorization back still works in 10240, and even though it has bugs, the titlebars still look better than leaving them plain white.
I dislike everything XAML, I don't see how its driver related, it's clearly crappy coding, back in Windowsw 7/8 no one had such issues either. The over all theme got worse at development progressed, It's because of that user feedback concept in which people voted for because "they liked the icons, not the over all design" but Microsoft thought oh.. look people like that design, lets just do it! So it's this "Person's" fault and Microsoft's fault for not providing a variety of customization options. What was the feedback even for?