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/views/markers/MarkerField.java
public Image getColumnHeaderImage() {
		String path = configurationElement
				.getAttribute(MarkerSupportConstants.ATTRIBUTE_ICON);
		if (path == null)
			return null;
		URL url = BundleUtility.find(configurationElement.getContributor()
				.getName(), path);
		if (url == null)
			return null;
		return IDEWorkbenchPlugin.getDefault().getResourceManager()
				.createImageWithDefault(ImageDescriptor.createFromURL(url));
	}
	/**
	 * Return the text to be displayed in the column header for this field.
	 * 
	 * @return String
	 * @see #getColumnTooltipText() this is the default column tooltip text
	 */
	public String getColumnHeaderText() {
		return configurationElement
				.getAttribute(MarkerSupportConstants.ATTRIBUTE_NAME);
	}
	/**
	 * Return the text for the column tooltip.
	 * 
	 * @return String
	 * @see #getColumnHeaderText()
	 */
	public String getColumnTooltipText() {
		return getColumnHeaderText();