darcula.css

* {
    -fx-darcula-background: #3C3F41;
    -fx-darcula-window-background: #282829;
    -fx-darcula-text: #BBBBBB;
    -fx-darcula-window-text: #A0A0A0;
}

.root {
    -fx-background-color: -fx-darcula-window-background;
}

.main-tool-bar {
    /*	-fx-pref-height: 30px;*/
    -fx-padding: 4px;
    -fx-spacing: 4px;
    -fx-background-color: -fx-darcula-background;
}

.separator *.line {
    -fx-border-color: #6F6F6F;
    -fx-border-style: dotted;
    -fx-border-width: 0 0 0 2px;
}

.status-bar {
    -fx-padding: 2px 4px;
    -fx-spacing: 2px;
    -fx-border-width: 0.5px 0 0 0;
    -fx-border-color: #464646;
    -fx-background-color: -fx-darcula-background;
}

.status-bar .image-button {
    -fx-padding: 0px;
    -fx-font-size: 9px;
    -fx-content-display: graphic-only;
    -fx-background-color: transparent;
}

.status-bar .text {
    -fx-fill: -fx-darcula-text;
    -fx-font-size: 11px;
    -fx-indent: 20px;
}

.main-tool-bar .button {
    -fx-text-fill: #BBBBBB;
    -fx-font-family: Arial;
    /*	-fx-font-weight: bold;*/
}

.main-tool-bar .bread-crumb-button {

    -fx-background-color: transparent;
}

.main-tool-bar .image-button {
    -fx-padding: 3px;
    -fx-font-size: 9px;
    -fx-content-display: graphic-only;
    -fx-background-radius: 2;
    -fx-background-insets: -1, 0;
    -fx-background-color: transparent;
}

.update {
    -fx-graphic: url('icons/actions/checkOut.png');
}

.commit {
    -fx-graphic: url('icons/actions/commit_dark.png');
}

.revert {
    -fx-graphic: url('icons/actions/rollback.png');
}

.showHistory {
    -fx-graphic: url('icons/vcs/history_dark.png');
}

.tbShown {
    -fx-graphic: url('icons/general/tbShown_dark.png');
}

.projectStructure {
    -fx-graphic: url('icons/general/projectStructure_dark.png');
}

.main-tool-bar .button:hover {
    -fx-background-color: #757B80, #464A4D;
}

.main-tool-bar .button:armed {
    -fx-background-color: #757B80, #55595C;
}

.shortcuts {
    -fx-spacing: 17px;
    -fx-font-size: 13pt;
    -fx-font-smoothing-type: lcd;
    -fx-font-family: "Lucida Grande";
    -fx-alignment: center-left;
}

.shortcuts .hbox {
    -fx-spacing: 10px;
}
.shortcuts .text{
    -fx-fill: #a0a0a0;
}

.shortcuts .shadow {
    -fx-fill: #181819;
    -fx-translate-x: 1px;
    -fx-translate-y: 1px;
}
.shortcuts .accelerator {
    -fx-fill: #549bf9;
}

ProjectEditor.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?scenebuilder-stylesheet darcula.css?>

<?import java.net.URL?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<StackPane prefHeight="400.0" prefWidth="600.0" styleClass="root"
           xmlns="http://javafx.com/javafx/9.0.1">
    <stylesheets>
        <URL value="@darcula.css"/>
    </stylesheets>
    <VBox maxHeight="-Infinity" maxWidth="-Infinity" nodeOrientation="LEFT_TO_RIGHT" styleClass="shortcuts">
        <HBox styleClass="hbox">
            <StackPane>
                <Text styleClass="shadow" text="Search Everywhere"/>
                <Text styleClass="text" text="Search Everywhere"/>
            </StackPane>
            <StackPane>
                <Text styleClass="accelerator" text="Double ⇧"/>
            </StackPane>
        </HBox>
        <HBox styleClass="hbox">
            <StackPane>
                <Text styleClass="shadow" text="Go to File"/>
                <Text styleClass="text" text="Go to File"/>
            </StackPane>
            <StackPane>
                <Text styleClass="accelerator" text="⇧⌘O"/>
            </StackPane>
        </HBox>
        <HBox styleClass="hbox">
            <StackPane>
                <Text styleClass="shadow" text="Recent Files"/>
                <Text styleClass="text" text="Recent Files"/>
            </StackPane>
            <StackPane>
                <Text styleClass="accelerator" text="⌘E"/>
            </StackPane>
        </HBox>
        <HBox styleClass="hbox">
            <StackPane>
                <Text styleClass="shadow" text="Navigation Bar"/>
                <Text styleClass="text" text="Navigation Bar"/>
            </StackPane>
            <StackPane>
                <Text styleClass="accelerator" text="⌘↑"/>
            </StackPane>
        </HBox>
        <HBox styleClass="hbox">
            <StackPane>
                <Text styleClass="shadow" text="Drop files here to open"/>
                <Text styleClass="text" text="Drop files here to open"/>
            </StackPane>
        </HBox>
    </VBox>
    <BorderPane>
        <top>
            <ToolBar nodeOrientation="LEFT_TO_RIGHT" styleClass="main-tool-bar" BorderPane.alignment="CENTER">
                <!--<BreadCrumbBar id="location"/>-->
                <Pane HBox.hgrow="ALWAYS"/>
                <Button styleClass="image-button"/>
                <Separator/>
                <Button styleClass="update, image-button"/>
                <Button styleClass="commit, image-button"/>
                <Button styleClass="showHistory, image-button"/>
                <Button styleClass="revert, image-button"/>
                <Separator/>
                <Button styleClass="projectStructure, image-button"/>
                <Button styleClass="search, image-button"/>
            </ToolBar>
        </top>
        <bottom>
            <ToolBar styleClass="status-bar" BorderPane.alignment="CENTER">
                <Button styleClass="tbShown, image-button"/>
                <Label text="Frameworks Detected: COBOL">
                    <padding>
                        <Insets left="9.0"/>
                    </padding>
                </Label>
            </ToolBar>
        </bottom>
    </BorderPane>
</StackPane>