Bug 34159 [Tasks] First three columns of Task List too wide w/native table
The type, completion, and priority columns of the Task list using the native table widget on MacOS X are much wider than are necessary for displaying the icons in those columns and appear not to be resizable.
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/tasklist/TaskList.java
settings = workbenchSettings.addNewSection(TAG_SORT_SECTION);
			sorter.saveState(settings);
		}
	}
	private String columnHeaders[] = { TaskListMessages.getString("TaskList.headerIcon"), 
		TaskListMessages.getString("TaskList.headerCompleted"), 
		TaskListMessages.getString("TaskList.headerPriority"), 
		TaskListMessages.getString("TaskList.headerDescription"), 
		TaskListMessages.getString("TaskList.headerResource"), 
		TaskListMessages.getString("TaskList.headerFolder"), 
		TaskListMessages.getString("TaskList.headerLocation") 
	};
	private ColumnLayoutData columnLayouts[] =
		{
			new ColumnPixelData(19, false),
			new ColumnPixelData(19, false),
			new ColumnPixelData(19, false),
			new ColumnWeightData(200),
			new ColumnWeightData(75),
			new ColumnWeightData(150),
			new ColumnWeightData(60)};
	private IPartListener partListener = new IPartListener() {
		public void partActivated(IWorkbenchPart part) {
			TaskList.this.partActivated(part);
		}
		public void partBroughtToTop(IWorkbenchPart part) {
		}
		public void partClosed(IWorkbenchPart part) {
			TaskList.this.partClosed(part);
		}