* The value is, e.g. 100 <br>
     * comment: Minimum height for HTML images in thumbnails.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getThumbnailHtmlImageMinHeight();

    /**
     * Get the value for the key 'thumbnail.html.image.min.height' as {@link Integer}. <br>