private void createCombo() {
    myComboBox = new SchemesCombo<>() {
      @Override
      protected boolean supportsProjectSchemes() {
        return mySchemesPanel.supportsProjectSchemes();
      }

      @Override
      protected boolean isProjectScheme(@NotNull T scheme) {
        return mySchemesPanel.getModel().isProjectScheme(scheme);
      }

      @Override
      protected boolean isDefaultScheme(@NotNull T scheme) {
        SchemesModel<T> model = mySchemesPanel.getModel();
        return model.isDefaultScheme(scheme);
      }

      @Override
      protected int getIndent(@NotNull T scheme) {
        return mySchemesPanel.getIndent(scheme);
      }

      @Override
      protected @NotNull SimpleTextAttributes getSchemeAttributes(T scheme) {
        SchemesModel<T> model = mySchemesPanel.getModel();
        SimpleTextAttributes baseAttributes = !useBoldForNonRemovableSchemes() || model.canDeleteScheme(scheme)
                                              ? SimpleTextAttributes.REGULAR_ATTRIBUTES
                                              : SimpleTextAttributes.REGULAR_BOLD_ATTRIBUTES;
        if (mySchemesPanel.highlightNonDefaultSchemes() && model.canResetScheme(scheme) && model.differsFromDefault(scheme)) {
          return baseAttributes.derive(-1, MODIFIED_ITEM_FOREGROUND, null, null);
        }
        return baseAttributes;
      }
    };
    myComboBox.addActionListener(new ActionListener() {
      @Override
      public void actionPerformed(ActionEvent e) {
        mySchemesPanel.getActions().onSchemeChanged(getSelectedScheme());
      }
    });
    myComboBox.setOpaque(false);
  }
private void createCombo()