Allow to zoom in further when using the -t flag.
The default is tiny on resolutions higher than FullHD.

Index: config.def.h
--- config.def.h.orig
+++ config.def.h
@@ -16,7 +16,7 @@ static const char *DEFAULT_BAR_FG     = NULL;  /* NULL
 static const char *DEFAULT_FONT       = "monospace-8";
 
 /* if true, statusbar appears on top of the window */
-static const bool TOP_STATUSBAR = false;
+static const bool TOP_STATUSBAR = true;
 #endif /* HAVE_LIBFONTS */
 
 #endif
@@ -57,18 +57,18 @@ static const bool ALPHA_LAYER = false;
  *   0 or less means disable cache.
  * 100 means use all available memory (but not above CACHE_SIZE_LIMIT).
  */
-static const int CACHE_SIZE_MEM_PERCENTAGE = 3;          /* use 3% of total memory for cache */
-static const int CACHE_SIZE_LIMIT = 256 * 1024 * 1024;   /* but not above 256MiB */
-static const int CACHE_SIZE_FALLBACK = 32 * 1024 * 1024; /* fallback to 32MiB if we can't determine total memory */
+static const int CACHE_SIZE_MEM_PERCENTAGE = 10;          /* use 10% of total memory for cache */
+static const int CACHE_SIZE_LIMIT = 2048 * 1024 * 1024;   /* but not above 2GiB */
+static const int CACHE_SIZE_FALLBACK = 512 * 1024 * 1024; /* fallback to 512MiB if we can't determine total memory */
 
 #endif
 #ifdef _THUMBS_CONFIG
 
 /* thumbnail sizes in pixels (width == height): */
-static const int thumb_sizes[] = { 32, 64, 96, 128, 160 };
+static const int thumb_sizes[] = { 128, 160, 240, 320, 460 };
 
 /* thumbnail size at startup, index into thumb_sizes[]: */
-static const int THUMB_SIZE = 3;
+static const int THUMB_SIZE = 2;
 
 #endif
 #ifdef _MAPPINGS_CONFIG
@@ -86,7 +86,7 @@ static const keymap_t keys[] = {
 	{ 0,            XK_Return,        g_switch_mode,        None },
 	{ 0,            XK_f,             g_toggle_fullscreen,  None },
 	{ 0,            XK_b,             g_toggle_bar,         None },
-	{ ControlMask,  XK_x,             g_prefix_external,    None },
+	{ 0,            XK_x,             g_prefix_external,    None },
 	{ 0,            XK_g,             g_first,              None },
 	{ 0,            XK_G,             g_n_or_last,          None },
 	{ 0,            XK_r,             g_reload_image,       None },