@Override
		public void setAttributes(Node node, String tagName, Map<String, String> attributes) {
			if (node instanceof Code || node instanceof IndentedCodeBlock ||
				node instanceof FencedCodeBlock) {
				attributes.put("style", "background-color: #eef;");
			}
		}
Class to add custom style to code tags and code blocks
GhidraBuild/MarkdownSupport/src/main/java/ghidra/markdown/MarkdownToHtml.java