File listing box

templates/fragments/menu_files/en.html is set up not to display some files:

<div
 class="files"
 xmlns:petal="http://purl.org/petal/1.0/"
 petal:condition="true: self/components_list --file"
>
 <h2>
   <a
     xml:lang="en"
     lang="en"
     dir="ltr"
     name="files"
     id="files"
   >
     Files
   </a>
 </h2>
 <div
   petal:define="File_Loop self/components_list --file;"
   petal:repeat="file File_Loop"
   petal:omit-tag=""
 >
   <p
     petal:attributes="class string:file-${file/extension}"
     class="file-file"
     petal:condition="true:  file/title;
                      false: file/name_is --style.css;
                      false: file/name_is --favicon.ico;
                      false: file/name_is --script.js;"
   >
     <a
       href="http://example.com/"
       rel="dc:hasPart"
       petal:content="file/title"
       petal:attributes="href file/uri"
     >
       File Title
     </a>
   </p>
 </div>
</div>

However the problem with this is that if there are only the named files attached to a page then an empty box is generated.

It would be better if the files that are not to be displayed are set as an env var perhaps?

MKD__HIDE_FILES="favicon.ico, robots.txt, style.css"