diff --git a/src/main.c b/src/main.c
index ddbf045..7320922 100644
--- a/src/main.c
+++ b/src/main.c
@@ -11,32 +11,15 @@
 float *generate_data_surface(unsigned int, unsigned char *);
 float *generate_normals_surface(float *, unsigned char);
 
-unsigned char palette[] = {
-	0xEB,
-	0xD3,
-	0xF8,
-	0xff,
-	0xEB,
-	0xD4,
-	0xF8,
-	0xff,
-	0xEB,
-	0xD5,
-	0xF8,
-	0xff,
-	0x7A,
-	0x1C,
-	0xAC,
-	0xff,
-};
-
 const char *wname = "manigraph: manifold grapher";
 
-struct projection projection = {
-	.x = 0,
-	.y = 1,
-	.z = 2,
-	.w = 3,
+struct projection projection = {.x = 0, .y = 1, .z = 2, .w = 3};
+
+unsigned char palette[][4] = {
+	{0xEB, 0xD3, 0xF8, 0xff},
+	{0xEB, 0xD4, 0xF8, 0xff},
+	{0xEB, 0xD5, 0xF8, 0xff},
+	{0x7A, 0x1C, 0xAC, 0xff},
 };
 
 void mlog(char *msg)
diff --git a/src/main.h b/src/main.h
index fdcb284..75332aa 100644
--- a/src/main.h
+++ b/src/main.h
@@ -142,6 +142,6 @@ void destroy_texture(id_t texture);
 		colors: array of color values (rgba in hex ).
 		n: number of color on colors.
 */
-id_t create_palette_texture(const unsigned char * colors, unsigned char n );
+id_t create_palette_texture(const unsigned char colors[][4], unsigned char n );
 
 quat_t poll_input(window_t window);