Let me say right away that I'm neither a programmer nor a designer. I simply liked this design and decided to tweak it a bit to suit my tastes. I'd be grateful for any help or advice. This is still a work in progress (I do this in my free time and whenever I feel like it)

Also thanks to @x3phyy for this and other improvements that I'm using

Changelog:

Version 0.1
    Start Menu:
      1. The search bar takes up the entire width of the Start menu
      2. Added a "Recommended" section 
         (Settings -> Personalization -> Start menu -> enable/disable "Show recently added apps")
      3. The "Pinned" and "Recomended" heading has been removed
      4. The open folder from "Pinned" has been moved to the left
      5. The "Phone Link" and the "User Panel" have been moved lower
      6. Added a hover effect similar to the TranslucentStartMenu Theme
      7. Slightly increased the opacity of the dark gray background for all sections
      
    Taskbar:
      1. Slightly increased the opacity of the System Tray background
      
    Notifications Center:
      1. Decreased the opacity of the "Control Center" background 
      2. Removed the notification block above the calendar
      3. Removed the "Focus" block below the calendar
      4. Changed the background opacity for better readability

If you'd like to help, I'd be grateful! Below will be written the current problems that I want to solve in the future or I am unable to solve them.

Problems I couldn't solve:

    Start Menu:
      1. In the "Pinned" section, there's a gray border around the folder thumbnails 
         (where the four app icon previews are)
      2. At the bottom of the "All" section, there's a border that hides the contents of 
         that section, but it's not very nicely positioned. I couldn't lower this border 
         to the "User Panel" bottom level
      3. Remove the "All" heading

    Notifications Center:
      1. Change the color of the buttons when it is off, icons and the text underneath them 
         to gray for better readability

I want to try doing this in the future:

    Start Menu:
      1. When opening the Start menu, the icon in the Search Bar is blue-green, but if I 
         click on a folder or button that doesn't close the Start Menu, the color changes 
         to gray (I'd like it to be always gray)
      2. Move the "Account" button slightly to the right and the "power" button to the left 
         for symmetry
      3. Change the spacing between icons in the "Pinned" section
         
    Taskbar:
      1. Change the tray background from the standard one to WindowGlass