}//GEN-LAST:event_mnuChangeRendererActionPerformed
private void mnuBackgroundActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_mnuBackgroundActionPerformed
final JFileChooser fc = new JFileChooser(Info.getDatafilePath() + "/resources/");
OpenDialogFileFilter filter = new OpenDialogFileFilter();
filter.addExtension("png");
filter.addExtension("jpeg");
filter.addExtension("jpg");
filter.setDescription("Image files (png, jpeg)");
fc.addChoosableFileFilter(filter);
fc.setFileFilter(filter);
int returnVal = fc.showOpenDialog(this);