Banners should use RGBA4444 color.

source/3ds/cwav.cpp

@@ -30,11 +30,6 @@ typedef struct {
     u32 totalChannels;
 } InfoHeader;
 
-typedef struct {
-    char magic[4] = {'D', 'A', 'T', 'A'};
-    u32 length;
-} DataHeader;
-
 typedef struct {
     u32 flags = 0x7100;
     u32 offset;
@@ -48,6 +43,11 @@ typedef struct {
     u32 padding = 0;
 } ChannelData;
 
+typedef struct {
+    char magic[4] = {'D', 'A', 'T', 'A'};
+    u32 length;
+} DataHeader;
+
 u8* build_cwav(WAV wav, u32* size) {
     Header header;
     u32 offset = sizeof(Header);