After hinting at upcoming changes to the Start menu, Microsoft has officially announced that it is coming to Window 10 in the near future. Currently only available in Windows 10 Preview build 20161, users can start to play with the new Start menu and other design and UI tweaks coming to the shipping build soon.
https://www.notebookcheck.net/New-Windows-10-Start-menu-design-official-plus-other-UI-tweaks-in-the-pipeline.478916.0.html
👀 looks the same to me
I really wouldn't say that Windows has a theme at all anymore. At most there is a color scheme and lots of empty grey boxes. Flat design has really gone too far here: Windows 10 looks like a dreadful empty shell where all actual theming has been pulled out. Especially compared to the great looking and solid Windows 7 look. Thankfully I'm running Linux, where most desktop environments provide real theming and good looking themes. :)
I hate tablet mode and will be opting out of any change that triggers it automatically.