personally I prefer 2px borders

config.arg.h

@@ -8,7 +8,7 @@ const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", NULL };
 #define DEFMODE			dotile		/* dofloat */
 #define FLOATSYMBOL		"><>"
 #define TILESYMBOL		"[]="
-#define BORDERPX		1
+#define BORDERPX		2
 
 #define FONT			"-*-terminus-medium-r-*-*-14-*-*-*-*-*-*-*"
 #define NORMBORDERCOLOR		"#333"