https://source.android.com/ 
public interface com.android.internal.graphics.palette.Quantizer
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: com.android.internal.graphics.palette.Quantizer
  super_class: java.lang.Object
{
  public abstract void quantize(int[], int, com.android.internal.graphics.palette.Palette$Filter[]);
    descriptor: ([II[Lcom/android/internal/graphics/palette/Palette$Filter;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
           Name  Flags
      pixels     final
      maxColors  final
      filters    final

  public abstract java.util.List<com.android.internal.graphics.palette.Palette$Swatch> getQuantizedColors();
    descriptor: ()Ljava/util/List;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Signature: ()Ljava/util/List<Lcom/android/internal/graphics/palette/Palette$Swatch;>;
}
SourceFile: "Quantizer.java"
InnerClasses:
  public abstract Filter = com.android.internal.graphics.palette.Palette$Filter of com.android.internal.graphics.palette.Palette
  public final Swatch = com.android.internal.graphics.palette.Palette$Swatch of com.android.internal.graphics.palette.Palette