diff --git a/java/res/values-pl/strings-letter-descriptions.xml b/java/res/values-pl/strings-letter-descriptions.xml
new file mode 100644
index 0000000..7b1463c
--- /dev/null
+++ b/java/res/values-pl/strings-letter-descriptions.xml
@@ -0,0 +1,208 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- 
+/*
+**
+** Copyright 2014, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+ -->
+
+<!-- 
+    These accented letters (spoken_accented_letter_*) are unsupported by TTS.
+    These symbols (spoken_symbol_*) are also unsupported by TTS.
+    TODO: Remove these string resources when TTS/TalkBack support these letters.
+ -->
+
+<resources xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <string name="spoken_accented_letter_00AA" msgid="4374325261868451570">"Wskaźnik rodzaju żeńskiego liczebnika porządkowego"</string>
+    <string name="spoken_accented_letter_00B5" msgid="9031387673828823891">"Znak mikro"</string>
+    <string name="spoken_accented_letter_00BA" msgid="5045198452071207437">"Wskaźnik rodzaju męskiego liczebnika porządkowego"</string>
+    <string name="spoken_accented_letter_00DF" msgid="2260098367028134281">"Ostre S"</string>
+    <string name="spoken_accented_letter_00E0" msgid="2234515772182387086">"A z odwrotną kreską"</string>
+    <string name="spoken_accented_letter_00E1" msgid="7780174500802535063">"A z kreską"</string>
+    <string name="spoken_accented_letter_00E2" msgid="7054108480488102631">"A z daszkiem"</string>
+    <string name="spoken_accented_letter_00E3" msgid="8252569677935693343">"A z tyldą"</string>
+    <string name="spoken_accented_letter_00E4" msgid="6610118430986969466">"A z dwiema kropkami"</string>
+    <string name="spoken_accented_letter_00E5" msgid="7630449270070348394">"A z kółkiem"</string>
+    <string name="spoken_accented_letter_00E6" msgid="701838036007000032">"A, E, ligatura"</string>
+    <string name="spoken_accented_letter_00E7" msgid="2991289211702135310">"C z haczykiem"</string>
+    <string name="spoken_accented_letter_00E8" msgid="2080035251848179782">"E z odwrotną kreską"</string>
+    <string name="spoken_accented_letter_00E9" msgid="2708473976407506968">"E z kreską"</string>
+    <string name="spoken_accented_letter_00EA" msgid="1898848081635119449">"E z daszkiem"</string>
+    <string name="spoken_accented_letter_00EB" msgid="8318942663983499634">"E z dwiema kropkami"</string>
+    <string name="spoken_accented_letter_00EC" msgid="7643810590358306098">"I z odwrotną kreską"</string>
+    <string name="spoken_accented_letter_00ED" msgid="8288035355103120759">"I z kreską"</string>
+    <string name="spoken_accented_letter_00EE" msgid="1137417730211688894">"I z daszkiem"</string>
+    <string name="spoken_accented_letter_00EF" msgid="8993714322731956785">"I z dwiema kropkami"</string>
+    <string name="spoken_accented_letter_00F0" msgid="3427567511221967857">"Eth"</string>
+    <string name="spoken_accented_letter_00F1" msgid="6983294908255378605">"N z tyldą"</string>
+    <string name="spoken_accented_letter_00F2" msgid="2623804069332183695">"O z odwrotną kreską"</string>
+    <string name="spoken_accented_letter_00F3" msgid="8945987631729216917">"O z kreską"</string>
+    <string name="spoken_accented_letter_00F4" msgid="2415494299699717276">"O z daszkiem"</string>
+    <string name="spoken_accented_letter_00F5" msgid="7320512716652765243">"O z tyldą"</string>
+    <string name="spoken_accented_letter_00F6" msgid="9101179351242478555">"O z dwiema kropkami"</string>
+    <string name="spoken_accented_letter_00F8" msgid="1488324280918884122">"O z przekreśleniem"</string>
+    <string name="spoken_accented_letter_00F9" msgid="2823570256527173278">"U z odwrotną kreską"</string>
+    <string name="spoken_accented_letter_00FA" msgid="6883092085077298608">"U z kreską"</string>
+    <string name="spoken_accented_letter_00FB" msgid="4948239400399514418">"U z daszkiem"</string>
+    <string name="spoken_accented_letter_00FC" msgid="2496066211694000442">"U z dwiema kropkami"</string>
+    <string name="spoken_accented_letter_00FD" msgid="2400529610834233890">"Y z kreską"</string>
+    <string name="spoken_accented_letter_00FE" msgid="8788160115017853040">"Thorn"</string>
+    <string name="spoken_accented_letter_00FF" msgid="5225610161025124830">"Y z dwiema kropkami"</string>
+    <string name="spoken_accented_letter_0101" msgid="5573209280917268157">"A z makronem"</string>
+    <string name="spoken_accented_letter_0103" msgid="2469151120095164730">"A z łuczkiem"</string>
+    <string name="spoken_accented_letter_0105" msgid="8312689789855786427">"A z ogonkiem"</string>
+    <string name="spoken_accented_letter_0107" msgid="5708507895287798642">"C z kreską"</string>
+    <string name="spoken_accented_letter_0109" msgid="7008112603489583335">"C z daszkiem"</string>
+    <string name="spoken_accented_letter_010B" msgid="5641359473019753216">"C z kropką"</string>
+    <string name="spoken_accented_letter_010D" msgid="1048661826408437168">"C z ptaszkiem"</string>
+    <string name="spoken_accented_letter_010F" msgid="603374318657992205">"D z ptaszkiem"</string>
+    <string name="spoken_accented_letter_0111" msgid="5517997642285938260">"D z przekreśleniem"</string>
+    <string name="spoken_accented_letter_0113" msgid="2326009009311798997">"E z makronem"</string>
+    <string name="spoken_accented_letter_0115" msgid="3964545407091037747">"E z łuczkiem"</string>
+    <string name="spoken_accented_letter_0117" msgid="8799753183781089777">"E z kropką u góry"</string>
+    <string name="spoken_accented_letter_0119" msgid="3772451226935709136">"E z ogonkiem"</string>
+    <string name="spoken_accented_letter_011B" msgid="7663481332351461288">"E z ptaszkiem"</string>
+    <string name="spoken_accented_letter_011D" msgid="1181326600595482369">"G z daszkiem"</string>
+    <string name="spoken_accented_letter_011F" msgid="6843415389823096647">"G z łuczkiem"</string>
+    <string name="spoken_accented_letter_0121" msgid="6205288708713306903">"G z kropką u góry"</string>
+    <string name="spoken_accented_letter_0123" msgid="2394277128105386261">"G z haczykiem"</string>
+    <string name="spoken_accented_letter_0125" msgid="6575866461277751345">"H z daszkiem"</string>
+    <string name="spoken_accented_letter_0127" msgid="1316971762214091641">"H z przekreśleniem"</string>
+    <string name="spoken_accented_letter_0129" msgid="7824912405885325754">"I z tyldą"</string>
+    <string name="spoken_accented_letter_012B" msgid="6772690258769905270">"I z makronem"</string>
+    <string name="spoken_accented_letter_012D" msgid="2933871131556503448">"I z łuczkiem"</string>
+    <string name="spoken_accented_letter_012F" msgid="1340511254985181663">"I z ogonkiem"</string>
+    <string name="spoken_accented_letter_0131" msgid="5635600720566083969">"I bez kropki"</string>
+    <string name="spoken_accented_letter_0133" msgid="7593704176516791941">"I, J, ligatura"</string>
+    <string name="spoken_accented_letter_0135" msgid="4521109674238248436">"J z daszkiem"</string>
+    <string name="spoken_accented_letter_0137" msgid="5886444641003852175">"K z haczykiem"</string>
+    <string name="spoken_accented_letter_0138" msgid="4200294389170924853">"Kra"</string>
+    <string name="spoken_accented_letter_013A" msgid="3558015385412543517">"L z kreską"</string>
+    <string name="spoken_accented_letter_013C" msgid="1853639924813858734">"L z haczykiem"</string>
+    <string name="spoken_accented_letter_013E" msgid="7489345561739421886">"L z ptaszkiem"</string>
+    <string name="spoken_accented_letter_0140" msgid="7946718707268270589">"L z kropką pośrodku"</string>
+    <string name="spoken_accented_letter_0142" msgid="752931798111122240">"L z przekreśleniem"</string>
+    <string name="spoken_accented_letter_0144" msgid="201843550323875352">"N z kreską"</string>
+    <string name="spoken_accented_letter_0146" msgid="3403847152606051818">"N z haczykiem"</string>
+    <string name="spoken_accented_letter_0148" msgid="9215300786722209338">"N z ptaszkiem"</string>
+    <string name="spoken_accented_letter_0149" msgid="3191850286630154063">"N poprzedzone apostrofem"</string>
+    <string name="spoken_accented_letter_014B" msgid="8503022408522837410">"Eng"</string>
+    <string name="spoken_accented_letter_014D" msgid="4452323602550610641">"O z makronem"</string>
+    <string name="spoken_accented_letter_014F" msgid="2795957717094385336">"O z łuczkiem"</string>
+    <string name="spoken_accented_letter_0151" msgid="8013704745216410244">"O z podwójną kreską"</string>
+    <string name="spoken_accented_letter_0153" msgid="8410582495993285221">"O, E, ligatura"</string>
+    <string name="spoken_accented_letter_0155" msgid="7601517174689798560">"R z kreską"</string>
+    <string name="spoken_accented_letter_0157" msgid="9071455715455643810">"R z haczykiem"</string>
+    <string name="spoken_accented_letter_0159" msgid="7726911392381543439">"R z ptaszkiem"</string>
+    <string name="spoken_accented_letter_015B" msgid="1854129531164494117">"S z kreską"</string>
+    <string name="spoken_accented_letter_015D" msgid="4743571603550582530">"S z daszkiem"</string>
+    <string name="spoken_accented_letter_015F" msgid="1519945638631588761">"S z haczykiem"</string>
+    <string name="spoken_accented_letter_0161" msgid="7493478552029144246">"S z ptaszkiem"</string>
+    <string name="spoken_accented_letter_0163" msgid="9103547637928833069">"T z haczykiem"</string>
+    <string name="spoken_accented_letter_0165" msgid="7306159398214872062">"T z ptaszkiem"</string>
+    <string name="spoken_accented_letter_0167" msgid="5578767705098672443">"T z przekreśleniem"</string>
+    <string name="spoken_accented_letter_0169" msgid="413046581387735371">"U z tyldą"</string>
+    <string name="spoken_accented_letter_016B" msgid="3209778874978859441">"U z makronem"</string>
+    <string name="spoken_accented_letter_016D" msgid="2983326533258602840">"U z łuczkiem"</string>
+    <string name="spoken_accented_letter_016F" msgid="4416532499516387231">"U z kółkiem"</string>
+    <string name="spoken_accented_letter_0171" msgid="3435171971353200807">"U z podwójną kreską"</string>
+    <string name="spoken_accented_letter_0173" msgid="4494154432483553480">"U z ogonkiem"</string>
+    <string name="spoken_accented_letter_0175" msgid="2154545579611918513">"W z daszkiem"</string>
+    <string name="spoken_accented_letter_0177" msgid="4034463827306904781">"Y z daszkiem"</string>
+    <string name="spoken_accented_letter_017A" msgid="3368292232292925369">"Z z kreską"</string>
+    <string name="spoken_accented_letter_017C" msgid="2834484584505860430">"Z z kropką"</string>
+    <string name="spoken_accented_letter_017E" msgid="1209240442434887098">"Z z ptaszkiem"</string>
+    <string name="spoken_accented_letter_017F" msgid="317501463253362415">"Długie S"</string>
+    <string name="spoken_accented_letter_01A1" msgid="630186564859044196">"O z rogiem"</string>
+    <string name="spoken_accented_letter_01B0" msgid="8544012177684640443">"U z rogiem"</string>
+    <string name="spoken_accented_letter_0219" msgid="1960371842020076066">"S z przecinkiem u dołu"</string>
+    <string name="spoken_accented_letter_021B" msgid="1398418662032919032">"T z przecinkiem u dołu"</string>
+    <string name="spoken_accented_letter_0259" msgid="2464085263158415898">"Szwa"</string>
+    <string name="spoken_accented_letter_1EA1" msgid="688124877202887630">"A z kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EA3" msgid="327960130366386256">"A z zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EA5" msgid="637406363453769610">"A z daszkiem i kreską"</string>
+    <string name="spoken_accented_letter_1EA7" msgid="1419591804181615409">"A z daszkiem i odwrotną kreską"</string>
+    <string name="spoken_accented_letter_1EA9" msgid="6068887382734896756">"A z daszkiem i zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EAB" msgid="7236523151662538333">"A z daszkiem i tyldą"</string>
+    <string name="spoken_accented_letter_1EAD" msgid="2363364864106332076">"A z daszkiem i kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EAF" msgid="1576329511464272935">"A z łuczkiem i kreską"</string>
+    <string name="spoken_accented_letter_1EB1" msgid="4634735072816076592">"A z łuczkiem i odwrotną kreską"</string>
+    <string name="spoken_accented_letter_1EB3" msgid="2325245849038771534">"A z łuczkiem i zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EB5" msgid="3720427596242746295">"A z łuczkiem i tyldą"</string>
+    <string name="spoken_accented_letter_1EB7" msgid="700415535653646695">"A z łuczkiem i kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EB9" msgid="3901338692305890487">"E z kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EBB" msgid="4028688699415417302">"E z zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EBD" msgid="181253633045931897">"E z tyldą"</string>
+    <string name="spoken_accented_letter_1EBF" msgid="3309618845007944963">"E z daszkiem i kreską"</string>
+    <string name="spoken_accented_letter_1EC1" msgid="8139046749226332542">"E z daszkiem i odwrotną kreską"</string>
+    <string name="spoken_accented_letter_1EC3" msgid="3239674223053133383">"E z daszkiem i zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EC5" msgid="2216559244705714587">"E z daszkiem i tyldą"</string>
+    <string name="spoken_accented_letter_1EC7" msgid="9012731468253986792">"E z daszkiem i kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EC9" msgid="2901917620195717034">"I z zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1ECB" msgid="5470387489820034621">"I z kropką u dołu"</string>
+    <string name="spoken_accented_letter_1ECD" msgid="1340122876914839806">"O z kropką u dołu"</string>
+    <string name="spoken_accented_letter_1ECF" msgid="2326921263882559755">"O z zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1ED1" msgid="2885683296042774958">"O z daszkiem i kreską"</string>
+    <string name="spoken_accented_letter_1ED3" msgid="6857664926477376178">"O z daszkiem i odwrotną kreską"</string>
+    <string name="spoken_accented_letter_1ED5" msgid="2015209467290624062">"O z daszkiem i zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1ED7" msgid="7924481354960306389">"O z daszkiem i tyldą"</string>
+    <string name="spoken_accented_letter_1ED9" msgid="7023315590332365554">"O z daszkiem i kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EDB" msgid="2379438944917634496">"O z rogiem i kreską"</string>
+    <string name="spoken_accented_letter_1EDD" msgid="8107077534204404085">"O z rogiem i odwrotną kreską"</string>
+    <string name="spoken_accented_letter_1EDF" msgid="1846880105528347966">"O z rogiem i zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EE1" msgid="1520037313389776718">"O z rogiem i tyldą"</string>
+    <string name="spoken_accented_letter_1EE3" msgid="907964027171008963">"O z rogiem i kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EE5" msgid="1522024630360038700">"U z kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EE7" msgid="7815412228302952637">"U z zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EE9" msgid="4219119671251485651">"U z rogiem i kreską"</string>
+    <string name="spoken_accented_letter_1EEB" msgid="4086009841269002231">"U z rogiem i odwrotną kreską"</string>
+    <string name="spoken_accented_letter_1EED" msgid="3528151733528719847">"U z rogiem i zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EEF" msgid="3508548229409072119">"U z rogiem i tyldą"</string>
+    <string name="spoken_accented_letter_1EF1" msgid="1912816350401931115">"U z rogiem i kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EF3" msgid="7211760439435946494">"Y z odwrotną kreską"</string>
+    <string name="spoken_accented_letter_1EF5" msgid="8998864482764007384">"Y z kropką u dołu"</string>
+    <string name="spoken_accented_letter_1EF7" msgid="922043627252869200">"Y z zawijasem u góry"</string>
+    <string name="spoken_accented_letter_1EF9" msgid="6213977100552260366">"Y z tyldą"</string>
+    <string name="spoken_symbol_00A1" msgid="4281758332905123408">"Odwrócony wykrzyknik"</string>
+    <string name="spoken_symbol_00AB" msgid="4093069643313064892">"Lewy cudzysłów kątowy"</string>
+    <string name="spoken_symbol_00B7" msgid="2447718728927874920">"Kropka pośrodku"</string>
+    <string name="spoken_symbol_00B9" msgid="8026257165451461231">"Pierwsza potęga"</string>
+    <string name="spoken_symbol_00BB" msgid="1102740075655373928">"Prawy cudzysłów kątowy"</string>
+    <string name="spoken_symbol_00BF" msgid="6233794752573788098">"Odwrócony pytajnik"</string>
+    <string name="spoken_symbol_2018" msgid="4886476295598930225">"Lewy cudzysłów definicyjny"</string>
+    <string name="spoken_symbol_2019" msgid="8892530161598134083">"Prawy cudzysłów definicyjny"</string>
+    <string name="spoken_symbol_201A" msgid="2072987157683446644">"Cudzysłów pojedynczy"</string>
+    <string name="spoken_symbol_201C" msgid="4588048378803665427">"Lewy cudzysłów apostrofowy"</string>
+    <string name="spoken_symbol_201D" msgid="1642776849495925895">"Prawy cudzysłów apostrofowy"</string>
+    <string name="spoken_symbol_2020" msgid="9084628638189344431">"Krzyżyk"</string>
+    <string name="spoken_symbol_2021" msgid="5081396468559426475">"Podwójny krzyżyk"</string>
+    <string name="spoken_symbol_2030" msgid="9068837172419431755">"Promil"</string>
+    <string name="spoken_symbol_2032" msgid="3014506329156664396">"Prim"</string>
+    <string name="spoken_symbol_2033" msgid="1251022699713475088">"Bis"</string>
+    <string name="spoken_symbol_2039" msgid="6989616457213775957">"Lewy francuski cudzysłów pojedynczy"</string>
+    <string name="spoken_symbol_203A" msgid="31245095449823701">"Prawy francuski cudzysłów pojedynczy"</string>
+    <string name="spoken_symbol_2074" msgid="2116717717093306894">"Czwarta potęga"</string>
+    <string name="spoken_symbol_207F" msgid="1706731172134246659">"Małe n w górnym indeksie"</string>
+    <string name="spoken_symbol_20B1" msgid="2159994270622444689">"Znak peso"</string>
+    <string name="spoken_symbol_2105" msgid="7289404939366976829">"Znak „przez grzeczność”"</string>
+    <string name="spoken_symbol_2192" msgid="827804523596125414">"Strzałka w prawo"</string>
+    <string name="spoken_symbol_2193" msgid="2659541693445985717">"Strzałka w dół"</string>
+    <string name="spoken_symbol_2205" msgid="4457188084269117343">"Zbiór pusty"</string>
+    <string name="spoken_symbol_2206" msgid="4856786565708380687">"Przyrost"</string>
+    <string name="spoken_symbol_2264" msgid="5092061257745123554">"Mniejsze lub równe"</string>
+    <string name="spoken_symbol_2265" msgid="1907966479878036357">"Większe lub równe"</string>
+    <string name="spoken_symbol_2605" msgid="5202920479405857753">"Czarna gwiazdka"</string>
+</resources>