Bug 219483 [Markers] MarkerField needs to support font and colours
Some users want to be able to set the font and colour of an entry in the markers view. We should pass in a ViewerCell for this.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/MarkerPriorityField.java
/**
	 * Get the image for high priority
	 * 
	 * @return Image
	 */
	private Image getHighPriorityImage() {
		return MarkerSupportInternalUtilities
				.createImage(HIGH_PRIORITY_IMAGE_PATH);
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.internal.provisional.views.markers.MarkerField#getImage(org.eclipse.ui.internal.provisional.views.markers.MarkerItem)
	 */
	public Image getImage(MarkerItem item) {
		try {
			int priority = item.getAttributeValue(IMarker.PRIORITY,
					IMarker.PRIORITY_NORMAL);
			if (priority == IMarker.PRIORITY_HIGH) {
				return getHighPriorityImage();
			}
			if (priority == IMarker.PRIORITY_LOW) {
				return MarkerSupportInternalUtilities
						.createImage(LOW_PRIORITY_IMAGE_PATH);
			}
		} catch (NumberFormatException e) {
			return null;
		}
		return null;
	}