startButton.setImage(resourceManager.createImage(Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/insert_start.png")));
middleButton.setImage(resourceManager.createImage(Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/insert_middle.png")));
endButton.setImage(resourceManager.createImage(Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/insert_end.png")));
startButton.setImage(resourceManager.createImage(Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/insert_start.png")));
middleButton.setImage(resourceManager.createImage(Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/insert_middle.png")));
endButton.setImage(resourceManager.createImage(Activator.imageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/insert_end.png")));