@Override
public void decorate(UiCanvas canvas) {
JComponent pluginSelectorWrapper = BorderLayoutBuilder.fillWith(selector);
pluginSelectorWrapper.setOpaque(true);
UiUtils.setPanelBackgrounds(pluginSelectorWrapper, Colors.NEUTRAL_BACKGROUND);
pluginDropDown = new DropDownPanel(pluginSelectorWrapper, "Plugins (Optional)", false);
pluginDropDown.setPreferenceStore(ProjectSourceDataFileInputProvider.DISPLAY_PLUGIN_SELECTOR);
pluginDropDown.setRepackDialogWhenExpansionStateChanges(true);
pluginDropDown.setTitleToolTip("Expand this control to select one or more plugins to be applied to the source file");
JComponent displayer = pluginDropDown.getDisplayer();
displayer.setBorder(Empty.border(0, 10, 0, 0));