diff --git a/src/drawing.c b/src/drawing.c
index f2e244a..f65f87b 100644
--- a/src/drawing.c
+++ b/src/drawing.c
@@ -53,13 +53,13 @@ void noStroke()
 void strokeWeight(double weight)
 	{ lineWidth = weight; }
 
-char* rgba(double r, double g, double b, double a) {
+const char* rgba(double r, double g, double b, double a) {
 	static char buf[1024];
 	snprintf(buf, sizeof(buf) - 1, "%f %f %f %f", r, g, b, a);
 	return buf;
 }
 
-char* rgb(double r, double g, double b)
+const char* rgb(double r, double g, double b)
 	{ return rgba(r, g, b, 1); }
 
 void rect(double x, double y, double width, double height) {
@@ -195,6 +195,7 @@ static void unloadFont(HeliFontInstance *fi) {
 }
 
 Font createFont(const char *path) {
+	if (!heliInitialized) return NULL;
 	Font f = calloc(1, sizeof(*f));
 	f->instance = (HeliFontInstance*)heliStringmapGet(&fontCache, path);
 	if (!f->instance) {
diff --git a/src/drawing.h b/src/drawing.h
index 8eb30dc..7d1acdb 100644
--- a/src/drawing.h
+++ b/src/drawing.h
@@ -27,8 +27,8 @@ void noFill();
 void stroke(const char *color);
 void noStroke();
 void strokeWeight(double weight);
-char* rgb(double r, double g, double b);
-char* rgba(double r, double g, double b, double a);
+const char* rgb(double r, double g, double b);
+const char* rgba(double r, double g, double b, double a);
 void rect(double x, double y, double width, double height);
 void ellipse(double x, double y, double width, double height);
 void arc(double x, double y, double w, double h, double start, double stop);
diff --git a/src/world.c b/src/world.c
index 8f50864..c241a25 100644
--- a/src/world.c
+++ b/src/world.c
@@ -37,7 +37,7 @@ static int height = 400;
 static int resizable;
 static char title[1000];
 static int titleSize = (int)(sizeof(title)/sizeof(*title));
-static double frameRate = 30;
+static double frameRate = 24;
 
 static int cameraEnabled;
 static double cameraX;
diff --git a/src/world.h b/src/world.h
index f9bd4f1..a912a38 100644
--- a/src/world.h
+++ b/src/world.h
@@ -42,9 +42,9 @@ double mouseY();
 int mouseIsOver(Sprite sprite);
 int mousePressedOver(Sprite sprite);
 
+void messageBox(const char *message);
 void askText(const char *question, char *answer, int maxAnswerSize);
 void askTextEx(const char *question, char *answer, int maxAnswerSize, int multiline, int password);
-void messageBox(const char *message);
 
 int worldGetSpriteCount();
 Sprite worldGetSprite(int i);