Add patterns separated by comma. A pattern consist of a <strong>type:value</strong> pair; the accepted types are
                                  <strong>"name"</strong>, <strong>"path"</strong> and <strong>"size"</strong>.
                                   A file will be excluded if it matches any of the patterns.
                                   <br>For a <strong>"name"</strong> pattern only the filename will be matched but for a <strong>"path"</strong>,
                                   all the path will be matched (useful for excluding certain subdirectories altoghether).
                                   For these you can also use regular expressions accepted by preg_match, but without "," or ":".
                                   A pattern will be considered a regex if it starts with a "/" and is valid.
                                   <br>For the <strong>"size"</strong> type,
                                   which applies only to Media Library images, <strong>the main images (not thumbnails)</strong> that have the size in the specified range will be excluded.
                                   The format for the "size" exclude is: <strong>minWidth</strong>-<strong>maxWidth</strong>x<strong>minHeight</strong>-<strong>maxHeight</strong>, for example <strong>size:1000-1100x2000-2200</strong>. You can also specify a precise size, as <strong>1000x2000</strong>.