how can i remove the underline of class(Hyperlinks ?) in IDEA console

Hello, it's not supported so far.

I've created one issue for this: https://youtrack.jetbrains.com/issue/IDEA-346861/Support-change-ClassFinderFilters-style-in-settings

Feel free to vote and watch the YouTrack item in order to be notified once it has updates. See this article if you are not familiar with YouTrack.

Hello, does disable this feature fits your needs?

Settings | Advanced Settings | Process terminal output to find class names and highlight them.

Jacky Liu It works, thank you.