public abstract class ReleaseNotes {
    /**
     * The source markdown file for the release notes.
     */
    public abstract RegularFileProperty getMarkdownFile();

    /**
     * The base CSS file used by all documentation.
     */
    public abstract RegularFileProperty getBaseCssFile();

    /**
     * The release notes specific CSS file
     */
    public abstract RegularFileProperty getReleaseNotesCssFile();