JavaFX：是否可以为整个TreeView设置背景颜色？

Question

I have tried the following with no success:

.tree-view {
    -fx-skin: "com.sun.javafx.scene.control.skin.TreeViewSkin";
    -fx-background-color: green, -fx-control-inner-background;
    -fx-background-insets: 0, 1;
}

What I am trying to achieve is to set a blue background for an entire TreeView except the selected one. Setting the background on the selected tree item works fine, but changing for the entire tree view does not have any effect.

Answer 1

You can color the individual TreeCell s by using the .tree-cell selector:

.tree-view {
    -fx-background-color:lightsteelblue;
}

.tree-cell {
    -fx-background-color:lightsteelblue; // Default color
}

.tree-view:focused .tree-cell:filled:selected {
    -fx-background-color:indigo; // Focused color
}

.tree-cell:filled:selected{
    -fx-background-color:lightcyan; // Unfocused color
}

Produces something like this: