diff --git a/thumbnail/Thumbnailer.go b/thumbnail/Thumbnailer.go
index 36064d0..71ffb07 100644
--- a/thumbnail/Thumbnailer.go
+++ b/thumbnail/Thumbnailer.go
@@ -22,9 +22,10 @@ const (
 	OUTPUT_JPG       OutputFormat = 3
 	OUTPUT__DEFAULT               = OUTPUT_PNG_CRUSH
 
-	ASPECT_PADDED   AspectFormat = 80
-	ASPECT_SVELTE   AspectFormat = 81
-	ASPECT__DEFAULT              = ASPECT_PADDED
+	ASPECT_PAD_TO_DIMENSIONS          AspectFormat = 80
+	ASPECT_RESPECT_MAX_DIMENSION_ONLY AspectFormat = 81
+	ASPECT_CROP_TO_DIMENSIONS         AspectFormat = 82
+	ASPECT__DEFAULT                                = ASPECT_PAD_TO_DIMENSIONS
 
 	SCALEFMT_NN       ScaleFormat = 120
 	SCALEFMT_BILINEAR ScaleFormat = 121