问题
How can I change the colors of the tooltip shown by Intellisense under Visual Studio?
I've customized my editor colors to get white text on a dark background, by keeping VS theme to "Blue" (I find that the Dark theme lacks contrast), but now the Intellisense tooltip is unreadable.

回答1:
The quickest and easiest fix is to change the following colors:
- Tools → Options → Environment → Fonts and Colors → Show settings for "Environment":
- ToolTip
- ToolTip Border
- Tools → Options → Environment → Fonts and Colors → Show settings for "Editor Tooltip":
- Plain Text


Here I managed to make the tooltip readable with my dark editor colors on a "Blue" theme:

If that's not enough, you could install the Color Theme Editor addon as suggested here.
来源:https://stackoverflow.com/questions/48787912/how-can-i-change-intellisense-tooltip-colors