--- loncom/interface/lonindexer.pm	2018/08/09 13:52:07	1.229
+++ loncom/interface/lonindexer.pm	2020/09/03 15:38:51	1.230
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Directory Indexer
 #
-# $Id: lonindexer.pm,v 1.229 2018/08/09 13:52:07 raeburn Exp $
+# $Id: lonindexer.pm,v 1.230 2020/09/03 15:38:51 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1121,8 +1121,13 @@ $r->print ('<input type="hidden" name="a
 	my $quotable_filelink = &Apache::loncommon::escape_single($filelink);
         my $quotable_startdir = Apache::loncommon::escape_single($startdir);
         my $quotable_listname = &Apache::loncommon::escape_single($listname);
+        my $curfext = lc((split(/\./,$listname))[-1]);
+        my $modalstyle;
+        if ($curfext =~ /^js|css|txt|tab$/) {
+            $modalstyle = ",'','background-color:#ffffff'";
+        }
 
-	$r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">$listname</a> ");
+	$r->print (" <a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes'".$modalstyle.");\">$listname</a> ");
 	$quotable_filelink = &Apache::loncommon::escape_single($filelink.'.meta');
 	&Apache::loncommon::inhibit_menu_check(\$quotable_filelink);
 	$r->print (" (<a href=\"javascript:openMyModal('".$quotable_filelink."?inhibitmenu=yes',500,500,'yes');\">".&mt('metadata')."</a>) ");