diff --git a/criticals.c b/criticals.c
index 86b509f..c1ad69f 100644
--- a/criticals.c
+++ b/criticals.c
@@ -17,8 +17,10 @@
 #include "criticals.h"
 #include "util.h"
 
+#define MAX_CRITICALS 100
+
 static size_t idx = 0;
-static long double complex criticals[100];
+static long double complex criticals[MAX_CRITICALS];
 
 int
 behaves_critical(long double complex (*df)(long double complex),
@@ -43,7 +45,7 @@ add_critical_point(long double complex z)
 {
 	size_t i;
 
-	if (idx >= nelems(criticals))
+	if (idx >= MAX_CRITICALS)
 		return;
 	for (i = 0; i < idx; i++)
 		if (cabsl(z - criticals[i]) < 1.0e-9)
diff --git a/julia.c b/julia.c
index 9981402..db9fdeb 100644
--- a/julia.c
+++ b/julia.c
@@ -31,6 +31,7 @@
 #define RITNUM(c, i) (c[i].it - c[i].rit)
 
 #define OPTSTRING "a:b:c:D:d:h:Ll:N:n:w:x:y:z:"
+#define RADIAN 3.14159265358979323846L
 
 struct color contour_color = { 0 };
 static long double bailout = 1e100,
@@ -133,7 +134,7 @@ julia_main(int argc, char *argv[])
 	    zoom = 1.0,
 	    light, light_x, light_y, light_z, rit, rn, sec_h, zx, zy;
 	long long it, idx, ritnum;
-	int palette_size = 720,
+	int palette_size = 1000,
 	    width = 640,
 	    height = 400,
 	    rescache_width, rescache_height, i, j;
@@ -157,7 +158,7 @@ julia_main(int argc, char *argv[])
 			density = parse_double(optarg);
 			break;
 		case 'h':
-			height = parse_integer(optarg, 1, 65536);
+			height = parse_integer(optarg, 1, INT_MAX);
 			break;
 		case 'L':
 			do_light = 1;
@@ -172,7 +173,7 @@ julia_main(int argc, char *argv[])
 			niters = parse_integer(optarg, 1, LONG_MAX);
 			break;
 		case 'w':
-			width = parse_integer(optarg, 1, 65536);
+			width = parse_integer(optarg, 1, INT_MAX);
 			break;
 		case 'x':
 			julia_x = parse_double(optarg);
@@ -202,8 +203,8 @@ julia_main(int argc, char *argv[])
 
 	if (do_light) {
 		long double angle_xy, angle_z;
-		angle_xy = drand48() * 2.0L * 3.14159265358979323846L;
-		angle_z = (0.2L + 0.6L * drand48()) * 3.14159265358979323846L;
+		angle_xy = drand48() * 2.0L * RADIAN;
+		angle_z = (0.2L + 0.6L * drand48()) * RADIAN;
 		light_x = cosl(angle_xy) * sinl(angle_z);
 		light_y = sinl(angle_xy) * sinl(angle_z);
 		light_z = cosl(angle_z);
diff --git a/palette.c b/palette.c
index 03ab1b4..3c8af27 100644
--- a/palette.c
+++ b/palette.c
@@ -85,8 +85,8 @@ palette_main(int argc, char *argv[])
 	struct color *palette;
 	int ch, i, j, width, height;
 
-	height = 100;
-	width = 720;
+	height = 50;
+	width = 500;
 	while ((ch = getopt(argc, argv, "h:w:")) != -1)
 		switch (ch) {
 		case 'h':