BBFormBuilder builder = new BBFormBuilder("0, pref:grow, 0", this);
builder.setDefaultDialogBorder();
builder.append(logo, 3, CellConstraints.CENTER, CellConstraints.DEFAULT);
builder.appendUnrelatedComponentsGapRow(2);
builder.appendRow("50dlu:grow");
builder.append(sp, 3, CellConstraints.FILL, CellConstraints.FILL);
builder.appendUnrelatedComponentsGapRow(2);
builder.append(buttonBar, 3, CellConstraints.RIGHT, CellConstraints.DEFAULT);
}