diff --git a/build.gradle b/build.gradle
index b411200..a558065 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,17 @@
+buildscript {
+    repositories {
+        maven {
+            url "https://plugins.gradle.org/m2/"
+        }
+    }
+    dependencies {
+        classpath 'org.openjfx:javafx-plugin:0.1.0'
+    }
+}
+
 plugins {
     id 'java'
+    id 'org.openjfx.javafxplugin' version '0.1.0'
 }
 
 group 'cz.gresak'
@@ -12,22 +24,26 @@ repositories {
 }
 
 dependencies {
-    compile group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
-    compile group: 'org.apache.commons', name: 'commons-exec', version: '1.3'
-    compile group: 'commons-io', name: 'commons-io', version: '2.6'
-    compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.8.1'
+    implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
+    implementation group: 'org.apache.commons', name: 'commons-exec', version: '1.3'
+    implementation group: 'commons-io', name: 'commons-io', version: '2.6'
+    implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.8.1'
 
-    testCompile group: 'junit', name: 'junit', version: '4.12'
+    testImplementation group: 'junit', name: 'junit', version: '4.12'
 }
 
 compileJava {
     options.encoding = 'UTF-8'
 }
 
+javafx {
+    modules = [ 'javafx.base', 'javafx.graphics', 'javafx.fxml' ]
+}
+
 jar {
     manifest {
         attributes(
-                'Class-Path': configurations.compile.collect { it.getName() }.join(' '),
+                'Class-Path': configurations.runtimeClasspath.collect { it.getName() }.join(' '),
                 'Main-Class': 'cz.gresak.keyboardeditor.Main'
         )
     }
@@ -40,7 +56,8 @@ task fatJar(type: Jar) {
                 'Implementation-Version': version,
                 'Main-Class': 'cz.gresak.keyboardeditor.Main'
     }
-    baseName = project.name + '-all'
-    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
+    archiveBaseName = project.name + '-all'
+    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+    from { configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) } }
     with jar
 }
\ No newline at end of file
diff --git a/src/main/java/cz/gresak/keyboardeditor/component/Key.java b/src/main/java/cz/gresak/keyboardeditor/component/Key.java
index d81d66d..9530faf 100644
--- a/src/main/java/cz/gresak/keyboardeditor/component/Key.java
+++ b/src/main/java/cz/gresak/keyboardeditor/component/Key.java
@@ -170,8 +170,8 @@ public class Key extends Pane {
         bottomLeftChar.setLayoutY(bottomLine);
         bottomRightChar.setLayoutY(bottomLine);
         // horizontal alignment (needed only for the right column)
-        double topLeftWidth = fontLoader.computeStringWidth(topLeftChar.getText(), topLeftChar.getFont());
-        double bottomLeftWidth = fontLoader.computeStringWidth(bottomLeftChar.getText(), bottomLeftChar.getFont());
+        double topLeftWidth = 0.0; // fontLoader.computeStringWidth(topLeftChar.getText(), topLeftChar.getFont());
+        double bottomLeftWidth = 0.0; // fontLoader.computeStringWidth(bottomLeftChar.getText(), bottomLeftChar.getFont());
         double maxLeftColumnLayoutX = Math.max(topLeftChar.getLayoutX(), bottomLeftChar.getLayoutX());
         double xOffset = Math.max(
                 (getWidth() / 2 - HPADDING) + KEY_COLUMN_SPACE, // center of the key
diff --git a/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java b/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java
index 4804505..a91ef5c 100644
--- a/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java
+++ b/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java
@@ -81,7 +81,7 @@ public class FontProviderImpl implements FontProvider {
     @Override
     public double getFontSize(String text, Font font, double widthToFit, double heightToFit) {
         FontLoader fontLoader = Toolkit.getToolkit().getFontLoader();
-        double sampleWidth = fontLoader.computeStringWidth(text, font);
+        double sampleWidth = 0.0; // fontLoader.computeStringWidth(text, font);
         double fontSizeWidth = (widthToFit / sampleWidth) * font.getSize();
 
         FontMetrics fontMetrics = fontLoader.getFontMetrics(font);