Why is one color missing?
The original 24 x24 pixel image is as follows:
![demo](https://github.com/user-attachments/assets/e7ee968e-8477-42fa-973a-3d0cc3335b84)

After executing w4 run cart.wasm, the displayed image is as follows:
![image](https://github.com/user-attachments/assets/38645312-1648-4c7d-a235-e58b21436b58)

I executed `w4 png2src demo.png --as` and copied the code into main.ts as follows:
```typescript
import * as w4 from "./wasm4";

const demoWidth = 24;
const demoHeight = 24;
const demoFlags = 1; // BLIT_2BPP
const demo = memory.data<u8>([0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0x80, 0x00, 0x1a, 0x90, 0x00, 0x02, 0x80, 0x00, 0x1a, 0x90, 0x00, 0x02, 0x80, 0x00, 0x15, 0x50, 0x00, 0x02, 0x80, 0x00, 0x15, 0x50, 0x00, 0x02, 0x80, 0x00, 0x3f, 0xf0, 0x00, 0x02, 0x80, 0x00, 0x3f, 0xf0, 0x00, 0x02, 0x80, 0x00, 0x3f, 0xf0, 0x00, 0x02, 0x80, 0x00, 0x3f, 0xf0, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0x80, 0x00, 0x00, 0x00, 0x00, 0x02, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa]);
export function update(): void {
    w4.blit(demo, 0, 0, demoWidth, demoHeight, demoFlags);
}
```

The color of the pixel where blue should appear is not displayed.
Did I make a mistake in my operation?