changed how the layer background uses css

app/src/main/java/org/toop/app/layer/Layer.java

@@ -13,18 +13,22 @@ public abstract class Layer {
 	protected StackPane layer;
 	protected Region background;
 
-	protected Layer(String cssFile) {
+	protected Layer(String cssFile, String backgroundCssClass) {
 		layer = new StackPane();
 		layer.setPickOnBounds(false);
 		layer.getStylesheets().add(ResourceManager.get(CssAsset.class, cssFile).getUrl());
 
 		background = new Region();
 		background.setPrefSize(Double.MAX_VALUE, Double.MAX_VALUE);
-		background.getStyleClass().add("background");
+		background.getStyleClass().add(backgroundCssClass);
 
 		layer.getChildren().addLast(background);
 	}
 
+	protected Layer(String cssFile) {
+		this(cssFile, "background");
+	}
+
 	protected void addContainer(Container container, Pos position, int xOffset, int yOffset) {
 		StackPane.setAlignment(container.getContainer(), position);
 

app/src/main/java/org/toop/app/layer/layers/QuitLayer.java

@@ -8,7 +8,7 @@ import javafx.geometry.Pos;
 
 public final class QuitLayer extends Layer {
 	public QuitLayer() {
-		super("quit.css");
+		super("quit.css", "quit_background");
 
 		final Container mainContainer = Container.create(Container.Type.VERTICAL, 30);
 		mainContainer.addText("Are you sure?");

app/src/main/resources/assets/style/app.css

@@ -1,3 +1,7 @@
+.background {
+	-fx-background-color: linear-gradient(to bottom right, #21a7b2, #8f32b9);
+}
+
 .container {
 	-fx-background-color: linear-gradient(to bottom right, orange, indigo), #1d1d1d;
     -fx-background-insets: 0, 2;

app/src/main/resources/assets/style/main.css

@@ -1,3 +0,0 @@
-.background {
-	-fx-background-color: linear-gradient(to bottom right, #21a7b2, #8f32b9);
-}

app/src/main/resources/assets/style/quit.css

@@ -1,3 +1,3 @@
-.background {
+.quit_background {
 	-fx-background-color: #0000007f;
 }

app/src/main/resources/assets/style/selection.css

@@ -1,3 +0,0 @@
-.background {
-	-fx-background-color: linear-gradient(to bottom right, #21a7b2, #8f32b9);
-}