This is a extension of visual studio 2022,it prevents the intellisense popover from becoming transparent while holding down the control key.
If you want bind the ctrl key to navigate intellisense,when you holding down the ctrl key,intellisense becomes transparent,this is so annoying.
You can see the problem here
Allow disabling transparency on hold Ctrl
I hooked the Setter of the property VisualOpacity of the class UIElement, anyone trying to set the transparency of intellisense is filtered out.
This is tricky and crude, but it works.
Just build and install it