Bug 277873 [CSS] Exception handling for illegal color name
examples/org.eclipse.e4.ui.examples.css/src/org/eclipse/e4/ui/examples/css/editor/AbstractCSSEditor.java
}
		if (index < 1) {
			setStyleSheetContent("");
			return;
		}
		File file = (File) cssFiles.get(index - 1);
		fillTextareaWithStyleSheetContent(file);
	}
	protected void populateCSSFiles() {
		removeAllCSSFilesWidget();
		int size = cssFiles.size();
		for (int i = 0; i < size; i++) {
			cssFiles.remove(0);
		}
		addItemCSSFilesWidget("None");
		File baseDir = getBaseStyleDir();
		File[] files = baseDir.listFiles();
		for (int i = 0; i < files.length; i++) {
			File file = files[i];
			if (file.isFile()) {
				addItemCSSFilesWidget(file.getName());
				cssFiles.add(file);
			}
		}
	}
	/**
	 * Display CSS Engine error
	 * 
	 * @param e