:right-sidebar: True aat_layout_feature_selector_t =================================================================== .. currentmodule:: gi.repository.HarfBuzz .. versionadded:: 2.2.0 .. class:: aat_layout_feature_selector_t :no-contents-entry: The selectors defined for specifying AAT feature settings. Fields ------ .. rst-class:: interim-class .. class:: aat_layout_feature_selector_t :no-index: .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_LOWER_CASE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALT_HALF_WIDTH_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ALT_PROPORTIONAL_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_BOX_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CIRCLE_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FIVE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FOUR The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_ONE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_THREE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_TWO The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_CENTERED The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_HBASELINE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_CURSIVE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DECOMPOSE_DIACRITICS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DECORATIVE_BORDERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_CJK_ROMAN The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_LOWER_CASE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_UPPER_CASE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL1 The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL2 The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL3 The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL4 The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL5 The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIAGONAL_FRACTIONS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIAMOND_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DINGBATS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_DISPLAY_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ENGRAVED_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_EXPERT_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FLEURONS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_CJK_ROMAN The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_IDEOGRAPHS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_KANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_CJK_ROMAN The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_IDEOGRAPHS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_ONE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_THREE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_TWO The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HIDE_DIACRITICS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HIRAGANA_TO_KATAKANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HOJO_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FIVE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FOUR The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_ONE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_THREE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_TWO The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ILLUMINATED_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INFERIORS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS_AND_SMALL_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INTERNATIONAL_SYMBOLS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVALID The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_BOX_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_CIRCLE_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_ROUNDED_BOX_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1978_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1983_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1990_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_JIS2004_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_KANA_TO_ROMANIZATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_KATAKANA_TO_HIRAGANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_NUMBERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_PETITE_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_SMALL_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MATH_SYMBOLS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_NUMBERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NLCCHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NORMAL_POSITION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ALTERNATES The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_ITALIC_ROMAN The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_SYMBOL_ALTERNATIVES The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_FRACTIONS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_IDEOGRAPHIC_ALTERNATIVES The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ORNAMENTS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_RUBY_KANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLE_OPTIONS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLISTIC_ALTERNATES The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_NO_TRANSLITERATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ORDINALS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PARENTHESIS_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PARTIALLY_CONNECTED The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PERIOD_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PI_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_CJK_ROMAN The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_IDEOGRAPHS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_KANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_NUMBERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_NUMBERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_HIRAGANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_KATAKANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROMAN_NUMERAL_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_ROUNDED_BOX_ANNOTATION The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SCIENTIFIC_INFERIORS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SHOW_DIACRITICS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SIMPLIFIED_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SMALL_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SUPERIORS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TALL_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_NUMBERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_TEXT The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TITLING_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FIVE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FOUR The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_ONE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_THREE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_TWO The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_NAMES_CHARACTERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UNCONNECTED The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_AND_LOWER_CASE The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_NUMBERS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_PETITE_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_SMALL_CAPS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_VERTICAL_FRACTIONS The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_ON The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_OFF The type of the None singleton. .. attribute:: B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_ON The type of the None singleton.