FastListUI.java 文件源码

private Color determineSelectionBackground() {
    Color c = UIManager.getColor("List.selectionBackground");
    if (c==null) {
        c = UIManager.getColor("nimbusSelectionBackground");
        if (c==null) { // Not Nimbus, but still need a value - fallback
            c = UIManager.getColor("textHighlight");
            if (c==null) {
                c = SystemColor.textHighlight;
            }
        }
    }

    // Nimbus unfortunately requires a Color, not a ColorUIResource, for
    // the background override to work. This causes this color to "stick"
    // even if the LAF is changed to something else later.  "c" here may
    // actually be a ColorUIResource
    return new Color(c.getRGB());//new ColorUIResource(c);

}