On a JTabbedPane, how do you set the color of the tab titles for both the selected and unselected states?
It seems like what you want are the setForegroundAt and setBackgroundAt methods in JTabbedPane.
I want to change the colors for all of them and let Swing handle knowing which tab is currently selected.
That wouuld be a LAF implementation. You can check out UIManager Defaults. For the Metal LAF it looks like background selected/unselected can be controlled but I don't see anything for the foreground font color.
So I would say you would need to add a ChangeListener to the tabbed pane. Then you can manually reset the selected background/foreground using the methods provided by Kainsin.
来源：https://stackoverflow.com/questions/6767668/setting-tab-title-colors-on-jtabbedpanes