Extract error thumbnail for image with only red & green color

**Glide Version**: 4.15.1

**Integration libraries**: No, just load local drawable.

**Device/Android Version**: Nexus One emulator , Pixel 6 (Android 13)

**Issue details / Repro steps / Use case background**:
We use Glide to load some special images which are used to test the screen, and find Glide render incorrect thumbnail. It can be easily reproduce.

**Glide load line / `GlideModule` (if any) / list Adapter code (if any)**:
```java
ImageView myPic = findViewById(R.id.testrb);
Glide.with(this).load(R.drawable.rbgridtest).into(myPic);
```

**Layout XML**:
```xml

```

The runtime image:

The test image 1:
The test image 2: