diff --git a/config-default.php b/config-default.php
index 80066e4..787f8d1 100755
--- a/config-default.php
+++ b/config-default.php
@@ -20,7 +20,7 @@ $sorting_files = "name"; // Sort files by: [name][date][size]
 $sortdir_folders = SORT_ASC; // Sort direction of folders: SORT_ASC / SORT_DESC
 $sortdir_files = SORT_ASC; // Sort direction of files: SORT_ASC / SORT_DESC
 $lazyload = 1; // 0 is pagination, 1 is display all pictures on one page
-$SkipObjects = array('aFolder', 'aFile.ext'); //Those files and folders will not be displayed (affects the page and the RSS feed)
+$skip_objects = array('aFolder', 'aFile.ext'); //Those files and folders will not be displayed (affects the page and the RSS feed)
 
 //LANGUAGE STRINGS
 $label_home = "Home"; // Name of home link in breadcrumb navigation
@@ -36,11 +36,11 @@ $breadcrumb_separator = ">"; // Breadcrumb parts separator
 $description = "MiniGal Nano";
 $nb_items_rss = 25; // Number of elements to display in the feed. If you add a lot of pictures at the time, consider increasing this number
 $rss_refresh_interval = 60; // Time, in seconds, between two RSS refresh. for example, 3600 = 1update max per hour, 86400 = 1/day.
-$SkipExts = array('html', 'txt', 'php', "gitignore"); //Files with one of this extension will not be displayed on the RSS feed
+$keep_extensions = array('jpg', 'jpeg', 'png', 'gif'); //Files with one of this extension will not be displayed on the RSS feed
 
 //ADVANCED SETTINGS
-$thumb_size = 320; //Thumbnail height/width (square thumbs). Changing this will most likely require manual altering of the template file to make it look properly!
-$label_max_length = 40; //Maximum chars of a folder name that will be displayed on the folder thumbnail
-$display_exif = 0; //Take care, even if not diplayed EXIF are still readable for visitors. May be a good idea to erase EXIF data...
-$display_filename = 0; //Show file names below the pictures
+$thumb_size = 320; // Thumbnail height/width (square thumbs). Changing this will most likely require manual altering of the template file to make it look properly!
+$label_max_length = 40; // Maximum chars of a folder name that will be displayed on the folder thumbnail
+$display_exif = 0; // Take care, even if not diplayed EXIF are still readable for visitors. May be a good idea to erase EXIF data...
+$display_filename = 0; // Show file names below the pictures
 ?>
diff --git a/config.php b/config.php
index ac53a07..1d68062 100755
--- a/config.php
+++ b/config.php
@@ -7,8 +7,11 @@
  * MinigalNano is licensed under the AGPL v3 (https://gnu.org/licenses/agpl-3.0.txt).
  */
 
-// INSERT HERE YOUR CUSTOMIZED SETTINGS
-// for the list of possible options, peruse config-default.php
+/*
+ * INSERT HERE YOUR CUSTOMIZED SETTINGS
+ * for the list of options, check config-default.php
+ */
+
 $title = "Your Own MiniGal Nano";
-// END
+
 ?>
diff --git a/rss.php b/rss.php
index 43623c7..545b895 100644
--- a/rss.php
+++ b/rss.php
@@ -41,18 +41,18 @@ $gallery_link = $g_protocol . '://' . $g_host . $g_port . $g_path;
 /*===================*/
 # Hardly inspired from here : codes-sources.commentcamarche.net/source/35937-creation-d-une-arborescenceI
 # Listing all files of a folder and sub folders.
-function listFiles(&$content, $Folder, $SkipFileExts, $SkipObjects) {
-	$dir = opendir($Folder);
+function listFiles(&$content, $folder, $keep_extensions, $SkipObjects) {
+	$dir = opendir($folder);
 	// Loop on all contained on the folder
-	while (false !== ($Current = readdir($dir))) {
-		if ($Current != '.' && $Current != '..' && in_array($Current, $SkipObjects) === false) {
-			if (is_dir($Folder . '/' . $Current)) {
-				ListFiles($content, $Folder . '/' . $Current, $SkipFileExts, $SkipObjects);
+	while (false !== ($current = readdir($dir))) {
+		if ($current != '.' && $current != '..' && in_array($current, $SkipObjects) === false) {
+			if (is_dir($folder . '/' . $current)) {
+				ListFiles($content, $folder . '/' . $current, $keep_extensions, $SkipObjects);
 			} else {
-				$FileExt = strtolower(substr(strrchr($Current, '.'), 1));
+				$file_ext = strtolower(substr(strrchr($current, '.'), 1));
 				// Should we display this extension ?
-				if (in_array($FileExt, $SkipFileExts) === false) {
-					$current_adress = $Folder . '/' . $Current;
+				if (in_array($file_ext, $keep_extensions)) {
+					$current_adress = $folder . '/' . $current;
 					array_push($content, $current_adress);
 				}
 			}
@@ -96,7 +96,7 @@ include "config.php";
 $folder = "photos";
 
 $content = array();
-$content = listFiles($content, $folder, $SkipExts, $SkipObjects);
+$content = listFiles($content, $folder, $keep_extensions, $skip_objects);
 usort($content, function ($a, $b) {return filemtime($a) < filemtime($b);});
 
 if (is_writeable(".")) {