HexView uses Avalonia properties for most display customization.
ToBaseBytesWidthSelectionStartSelectionLengthAnnotationsCaretBrushEditedBrushSelectionBrushMatchBrushDiffBrushThe samples style the control with attached TextElement properties:
TextElement.FontFamilyTextElement.FontSizeTextElement.ForegroundHexFormatter controls:
GroupSizeShowGroupSeparatorAddressWidthOverrideEncodingUseControlGlyphControlGlyphThis split is intentional: