diff --git a/config.def.h b/config.def.h
index 5d4e97a..685f525 100644
--- a/config.def.h
+++ b/config.def.h
@@ -13,7 +13,7 @@ static const char *DEFAULT_MARK_COLOR = NULL;  /* NULL means it will default to
 #if HAVE_LIBFONTS
 static const char *DEFAULT_BAR_BG     = NULL;  /* NULL means it will default to window background */
 static const char *DEFAULT_BAR_FG     = NULL;  /* NULL means it will default to window foreground */
-static const char *DEFAULT_FONT       = "monospace-8";
+static const char *DEFAULT_FONT       = "Hack Nerd Font-16";
 
 /* if true, statusbar appears on top of the window */
 static const bool TOP_STATUSBAR = false;
@@ -74,10 +74,10 @@ static const bool ALPHA_LAYER = false;
 #ifdef INCLUDE_THUMBS_CONFIG
 
 /* thumbnail sizes in pixels (width == height): */
-static const int thumb_sizes[] = { 32, 64, 96, 128, 160 };
+static const int thumb_sizes[] = { 32, 64, 96, 128, 160, 256, 512, 800, 1024 };
 
 /* thumbnail size at startup, index into thumb_sizes[]: */
-static const int THUMB_SIZE = 3;
+static const int THUMB_SIZE = 5;
 
 #endif
 #ifdef INCLUDE_MAPPINGS_CONFIG