Allow users to disable IntelliSense transparency on CTRL
IntelliSense going transparent when you hold CTRL is a nice feature, however it blocks users from using CTRL as modifier for movement in the editor.
For example: using CTRL+I for line up will cause the intellisense window to go transparent when trying to navigate.
Allow users either the ability to disable this feature or even better, rebind it. Binding a feature that is not re-bindable to an important modifier key is restrictive.