diff --git a/themes/danbooru/themelet.class.php b/themes/danbooru/themelet.class.php
index 7cd8631c..a848352b 100644
--- a/themes/danbooru/themelet.class.php
+++ b/themes/danbooru/themelet.class.php
@@ -20,8 +20,8 @@ class Themelet {
 		$h_view_link = make_link("post/view/{$image->id}", $query);
 		$h_tip = html_escape($image->get_tooltip());
 		$h_thumb_link = $image->get_thumb_link();
-		if($image->ext == 'swf'){
-		$tsize = get_thumbnail_size(192, 192); }
+		if($image->ext == 'swf' || 'svg'){
+		$tsize = get_thumbnail_size('thumb_width', 'thumb_height'); }
 		else{
 		$tsize = get_thumbnail_size($image->width, $image->height); }
 		return "<a href='$h_view_link'><img title='$h_tip' alt='$h_tip' ".
diff --git a/themes/default/themelet.class.php b/themes/default/themelet.class.php
index 4fd5e56d..d45610b2 100644
--- a/themes/default/themelet.class.php
+++ b/themes/default/themelet.class.php
@@ -33,8 +33,8 @@ class Themelet {
 		$h_view_link = make_link("post/view/$i_id", $query);
 		$h_tip = html_escape($image->get_tooltip());
 		$h_thumb_link = $image->get_thumb_link();
-		if($image->ext == 'swf'){
-		$tsize = get_thumbnail_size(192, 192); }
+		if($image->ext == 'swf' || 'svg'){
+		$tsize = get_thumbnail_size('thumb_width', 'thumb_height'); }
 		else{
 		$tsize = get_thumbnail_size($image->width, $image->height); }
 		return "
diff --git a/themes/flat/themelet.class.php b/themes/flat/themelet.class.php
index 5376e6fc..1724f329 100644
--- a/themes/flat/themelet.class.php
+++ b/themes/flat/themelet.class.php
@@ -33,8 +33,8 @@ class Themelet {
 		$h_view_link = make_link("post/view/$i_id", $query);
 		$h_tip = html_escape($image->get_tooltip());
 		$h_thumb_link = $image->get_thumb_link();
-		if($image->ext == 'swf'){
-		$tsize = get_thumbnail_size(192, 192); }
+		if($image->ext == 'swf' || 'svg'){
+		$tsize = get_thumbnail_size('thumb_width', 'thumb_height'); }
 		else{
 		$tsize = get_thumbnail_size($image->width, $image->height); }
 		return "
diff --git a/themes/futaba/themelet.class.php b/themes/futaba/themelet.class.php
index c5a902cf..5985f2e2 100644
--- a/themes/futaba/themelet.class.php
+++ b/themes/futaba/themelet.class.php
@@ -21,8 +21,8 @@ class Themelet {
 		$h_view_link = make_link("post/view/{$image->id}", $query);
 		$h_tip = html_escape($image->get_tooltip());
 		$h_thumb_link = $image->get_thumb_link();
-		if($image->ext == 'swf'){
-		$tsize = get_thumbnail_size(192, 192); }
+		if($image->ext == 'swf' || 'svg'){
+		$tsize = get_thumbnail_size('thumb_width', 'thumb_height'); }
 		else{
 		$tsize = get_thumbnail_size($image->width, $image->height); }
 		return "<a class='thumb' href='$h_view_link'><img title='$h_tip' alt='$h_tip' ".
diff --git a/themes/lite/themelet.class.php b/themes/lite/themelet.class.php
index 2714233f..d5539d23 100644
--- a/themes/lite/themelet.class.php
+++ b/themes/lite/themelet.class.php
@@ -33,8 +33,8 @@ class Themelet {
 		$h_view_link = make_link("post/view/$i_id", $query);
 		$h_tip = html_escape($image->get_tooltip());
 		$h_thumb_link = $image->get_thumb_link();
-		if($image->ext == 'swf'){
-		$tsize = get_thumbnail_size(192, 192); }
+		if($image->ext == 'swf' || 'svg'){
+		$tsize = get_thumbnail_size('thumb_width', 'thumb_height'); }
 		else{
 		$tsize = get_thumbnail_size($image->width, $image->height); }
 		return "
diff --git a/themes/old_default/themelet.class.php b/themes/old_default/themelet.class.php
index 5b25a843..e7ed8967 100644
--- a/themes/old_default/themelet.class.php
+++ b/themes/old_default/themelet.class.php
@@ -31,8 +31,8 @@ class Themelet {
 		$h_view_link = make_link("post/view/$i_id", $query);
 		$h_tip = html_escape($image->get_tooltip());
 		$h_thumb_link = $image->get_thumb_link();
-		if($image->ext == 'swf'){
-		$tsize = get_thumbnail_size(192, 192); }
+		if($image->ext == 'swf' || 'svg'){
+		$tsize = get_thumbnail_size('thumb_width', 'thumb_height'); }
 		else{
 		$tsize = get_thumbnail_size($image->width, $image->height); }
 		return "<a class='thumb' href='$h_view_link'><img id='$i_id' title='$h_tip' alt='$h_tip' ".
diff --git a/themes/warm/themelet.class.php b/themes/warm/themelet.class.php
index 7f90ba8a..8a3df34a 100644
--- a/themes/warm/themelet.class.php
+++ b/themes/warm/themelet.class.php
@@ -34,8 +34,8 @@ class Themelet {
 		$h_tip = html_escape($image->get_tooltip());
 		$h_image_link = $image->get_image_link();
 		$h_thumb_link = $image->get_thumb_link();
-		if($image->ext == 'swf'){
-		$tsize = get_thumbnail_size(192, 192); }
+		if($image->ext == 'swf' || 'svg'){
+		$tsize = get_thumbnail_size('thumb_width', 'thumb_height'); }
 		else{
 		$tsize = get_thumbnail_size($image->width, $image->height); }
 		return "