diff --git a/README.md b/README.md
index 695e3125..26f73ace 100644
--- a/README.md
+++ b/README.md
@@ -185,7 +185,7 @@ Everything will immediately show up in ImHex's Content Store and gets bundled wi
 | VHDX | | [`patterns/vhdx.hexpat`](patterns/vhdx.hexpat) | Microsoft Hyper-V Virtual Hard Disk format |
 | VOX | | [`patterns/vox.hexpat`](patterns/vox.hexpat) | MagicaVoxel scene description format |
 | WAV  | `audio/x-wav`  | [`patterns/wav.hexpat`](patterns/wav.hexpat)  | RIFF header, WAVE header, PCM header |
-| WAS | | [`patterns\was_oskasoftware.hexpat`](patterns\was_oskasoftware.hexpat) | Oska Software DeskMates WAS/WA3 (WAVE/MP3 Set) file
+| WAS | | [`patterns/was_oskasoftware.hexpat`](patterns/was_oskasoftware.hexpat) | Oska Software DeskMates WAS/WA3 (WAVE/MP3 Set) file
 | WAD | | [`patterns/wad.hexpat`](patterns/wad.hexpat) | DOOM WAD Archive |
 | WebP | `image/webp` | [`patterns/webp.hexpat`](patterns/webp.hexpat) | Google WebP image |
 | XBEH | `audio/x-xbox-executable` | [`patterns/xbeh.hexpat`](patterns/xbeh.hexpat) | Xbox executable |
diff --git a/patterns/fas_oskasoftware.hexpat b/patterns/fas_oskasoftware.hexpat
index 617ba4bc..f72b8559 100644
--- a/patterns/fas_oskasoftware.hexpat
+++ b/patterns/fas_oskasoftware.hexpat
@@ -1,25 +1,25 @@
 #pragma author DmitriLeon2000
-#pragma description Oska Software DeskMates FAS (Frames and Sequences) file
+#pragma description Oska Software DeskMates FAS (Frames and Sequences)
 #pragma endian little
 
 enum Compression : u32 {
-	BI_RGB,
-	BI_RLE8,
-	BI_RLE4,
-	BI_BITFIELDS,
-	BI_JPEG,
-	BI_PNG,
-	BI_ALPHABITFIELDS,
-	BI_CMYK,
-	BI_CMYKRLE8,
-	BI_CMYKRLE4,
+    BI_RGB,
+    BI_RLE8,
+    BI_RLE4,
+    BI_BITFIELDS,
+    BI_JPEG,
+    BI_PNG,
+    BI_ALPHABITFIELDS,
+    BI_CMYK,
+    BI_CMYKRLE8,
+    BI_CMYKRLE4,
 };
 
 struct Colors {
-	u8 blue;
-	u8 green;
-	u8 red;
-	u8 reserved;
+    u8 blue;
+    u8 green;
+    u8 red;
+    u8 reserved;
 };
 
 struct FASHeader {
@@ -69,7 +69,7 @@ struct SeqHeader {
 };
 
 struct Bitmap {
-    u8 byte[fas.fasHeader.version >= 3 ? fas.fasHeader.frameSize + (fas.frameSizeHigh << 16) : fas.fasHeader.frameSize];
+    u8 byte[parent.fasHeader.version >= 3 ? parent.fasHeader.frameSize + (parent.frameSizeHigh << 16) : parent.fasHeader.frameSize] [[sealed]];
 };
 
 struct FramesHeader {
@@ -105,7 +105,7 @@ struct FAS {
         u8 filenameChecksum; // a checksum for a filename in ASCII
     AnimSequence sequences[seqHeader.count];
     FramesHeader framesHeader;
+    Bitmap framesBitmap[framesHeader.count];
 };
 
 FAS fas @ 0x00;
-Bitmap framesBitmap[fas.framesHeader.count] @ $;
\ No newline at end of file
diff --git a/patterns/fas_oskasoftware_old.hexpat b/patterns/fas_oskasoftware_old.hexpat
index 9c7e7902..fc04ec43 100644
--- a/patterns/fas_oskasoftware_old.hexpat
+++ b/patterns/fas_oskasoftware_old.hexpat
@@ -1,25 +1,25 @@
 #pragma author DmitriLeon2000
-#pragma description Oska Software DeskMates FAS (Frames and Sequences) file (Oska DeskMate versions 1.3 and 2.06)
+#pragma description Oska Software DeskMates FAS (Frames and Sequences) (Oska DeskMate 1.03 and 2.06)
 #pragma endian little
 
 enum Compression : u32 {
-	BI_RGB,
-	BI_RLE8,
-	BI_RLE4,
-	BI_BITFIELDS,
-	BI_JPEG,
-	BI_PNG,
-	BI_ALPHABITFIELDS,
-	BI_CMYK,
-	BI_CMYKRLE8,
-	BI_CMYKRLE4,
+    BI_RGB,
+    BI_RLE8,
+    BI_RLE4,
+    BI_BITFIELDS,
+    BI_JPEG,
+    BI_PNG,
+    BI_ALPHABITFIELDS,
+    BI_CMYK,
+    BI_CMYKRLE8,
+    BI_CMYKRLE4,
 };
 
 struct Colors {
-	u8 blue;
-	u8 green;
-	u8 red;
-	u8 reserved;
+    u8 blue;
+    u8 green;
+    u8 red;
+    u8 reserved;
 };
 
 struct FASHeader {
@@ -59,14 +59,14 @@ struct AnimSequence {
 };
 
 struct SeqHeader {
-    le u32       size;
-    le u32       count;
-    le u32       strPointers[count*2];
+    le u32 size;
+    le u32 count;
+    le u32 strPointers[count*2];
 };
 
 struct Frame {
-    u8 colorBitmap[fas.fasHeader.frameSizeColor];
-    u8 maskBitmap[fas.fasHeader.frameSizeMask];
+    u8 colorBitmap[parent.fasHeader.frameSizeColor] [[sealed]];
+    u8 maskBitmap[parent.fasHeader.frameSizeMask] [[sealed]];
 };
 
 struct FramesHeader {
@@ -80,8 +80,7 @@ struct FAS {
     SeqHeader seqHeader;
     AnimSequence sequences[seqHeader.count];
     FramesHeader framesHeader;
+    Frame frames[framesHeader.count];
 };
 
-
 FAS fas @ 0x00;
-Frame frames[fas.framesHeader.count] @ $;
diff --git a/patterns/was_oskasoftware.hexpat b/patterns/was_oskasoftware.hexpat
index 9feed166..ccdfe707 100644
--- a/patterns/was_oskasoftware.hexpat
+++ b/patterns/was_oskasoftware.hexpat
@@ -7,8 +7,8 @@ import type.size;
 struct Sound {
     char name[];
     u32 length;
-    u8 data[length];
-};
+    u8 data[length] [[sealed]];
+} [[name(name), hex::visualize("sound", data, 1, 8000)]];
 
 struct Header {
     type::Size<u32> size;
@@ -21,4 +21,4 @@ struct WAS {
     Sound sounds[header.count];
 };
 
-WAS was @ 0x00;
\ No newline at end of file
+WAS was @ 0x00;