JBColor in Dark mode

IntelliJ Platform
1

Hi all,
just a question, the function brighter and darker works in a strange way for me:

@Override
  public @NotNull Color brighter() {
    if (func != null) {
      return lazy(() -> func.get().brighter());
    }
    if (name != null) {
      return calculateColor(name, defaultColor).brighter();
    }

    return new JBColor(super.brighter(), getDarkVariant().brighter());
  }

This is a snippet from JBColor.java class.
I was expecting that making a light theme color brighter will make it darker for the dark theme, instead make both brighter, that I don’t think is the opposite of dark theme way (I make a color bright in light theme to reduce the contrast with the background).

Should I open a YouTrack bug?