JTabbedPane-设置标签周围的默认边框。

这些颜色在外观中定义。如果查看的代码

BasicTabbedPaneUI

installDefaults()

protectedColor

protected void installDefaults() {    LookAndFeel.installColorsAndFont(tabPane, "TabbedPane.background",          "TabbedPane.foreground", "TabbedPane.font");         highlight = UIManager.getColor("TabbedPane.light");    lightHighlight = UIManager.getColor("TabbedPane.highlight");    shadow = UIManager.getColor("TabbedPane.shadow");    darkShadow = UIManager.getColor("TabbedPane.darkShadow");    //...    // a lot more stuff    //...}

如果您不想定义自己的L＆F，则可以在选项卡式窗格中设置自定义UI委托：

myTabbedPane.setUI(new BasicTabbedPaneUI() {   @Override   protected void installDefaults() {       super.installDefaults();       highlight = Color.pink;       lightHighlight = Color.green;       shadow = Color.red;       darkShadow = Color.cyan;       focus = Color.yellow;   }});

您当然可以更改这些颜色设置。按照设置，您将看到在哪里使用了哪些变量。