import java.net.URL;
import java.util.ResourceBundle;
public class CodeContentExtensionController implements Initializable {
@FXML private ChoiceBox<SupportedLanguage> language;
@FXML private TextArea code;
<BUG>@FXML private ColorPicker backgroundColor;
public SupportedLanguage getLanguage() { return this.language.getValue();  }</BUG>
public String getCode() { return this.code.getText(); }
<BUG>public Color getBackgroundColor() { return this.backgroundColor.getValue(); }
public String getBackgroundColorHexadecimal() {
return "#" + Integer.toHexString(getBackgroundColor().hashCode()).substring(0, 6).toUpperCase();
</BUG>
}

import java.net.URL;
import java.util.ResourceBundle;
public class CodeContentExtensionController implements Initializable {
@FXML private ChoiceBox<SupportedLanguage> language;
@FXML private TextArea code;
@FXML private CheckBox showingLineNumbers;
public SupportedLanguage getLanguage() { return this.language.getValue();  }
public String getCode() { return this.code.getText(); }
public Boolean isShowingLineNumbers() { return this.showingLineNumbers.isSelected(); }
public String getBackgroundColorHexadecimal() {
return "#" + Integer.toHexString(isShowingLineNumbers().hashCode()).substring(0, 6).toUpperCase();
}
