Add 6 letters words

android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=0.0.6
-app.versionCode=6
+app.versionName=0.0.7
+app.versionCode=7

icons/build_game_icons.sh

@@ -65,6 +65,7 @@ build_icon ${CURRENT_DIR}/key.svg           ${BASE_DIR}/assets/icons/key.png
 build_icon ${CURRENT_DIR}/lang_fr.svg       ${BASE_DIR}/assets/icons/lang_fr.png
 build_icon ${CURRENT_DIR}/length_4.svg      ${BASE_DIR}/assets/icons/length_4.png
 build_icon ${CURRENT_DIR}/length_5.svg      ${BASE_DIR}/assets/icons/length_5.png
+build_icon ${CURRENT_DIR}/length_6.svg      ${BASE_DIR}/assets/icons/length_6.png
 
 # Skins
 build_icon_for_skin "default"

icons/length_6.svg

+<?xml version="1.0" encoding="UTF-8"?>
+<svg enable-background="new 0 0 100 100" version="1.1" viewBox="0 0 102 102" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><rect x="1" y="1" width="100" height="100" ry="0" fill="#d8a233" stroke="#000" stroke-width="2"/><g transform="translate(-.72627 -1.3265)" fill="#fff" stroke="#030303" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="6" stroke-width="3.3"><path d="m74.566 50.394c1.3622-0.0046 4.9652 11.398 6.07 12.195 1.1048 0.79696 13.062 0.61914 13.487 1.9133s-9.3059 8.2444-9.7225 9.5414c-0.41657 1.297 3.4475 12.614 2.3481 13.418-1.0993 0.80441-10.717-6.3028-12.079-6.2982-1.3622 0.0046-10.931 7.1767-12.036 6.3797s2.6827-12.14 2.2574-13.434c-0.42533-1.2941-10.203-8.1785-9.7868-9.4754 0.41657-1.297 12.375-1.2 13.474-2.0044s4.6252-12.231 5.9874-12.236z"/><path d="m51.678 17.047c1.3622-0.0046 4.9652 11.398 6.07 12.195 1.1048 0.79696 13.062 0.61914 13.487 1.9133s-9.3059 8.2444-9.7225 9.5414c-0.41657 1.297 3.4475 12.614 2.3481 13.418-1.0993 0.80441-10.717-6.3028-12.079-6.2982-1.3622 0.0046-10.931 7.1767-12.036 6.3797s2.6827-12.14 2.2574-13.434c-0.42533-1.2941-10.203-8.1785-9.7868-9.4754 0.41657-1.297 12.375-1.2 13.474-2.0044s4.6252-12.231 5.9874-12.236z"/><path d="m28.791 50.394c1.3622-0.0046 4.9652 11.398 6.07 12.195 1.1048 0.79696 13.062 0.61914 13.487 1.9133s-9.3059 8.2444-9.7225 9.5414c-0.41657 1.297 3.4475 12.614 2.3481 13.418-1.0993 0.80441-10.717-6.3028-12.079-6.2982-1.3622 0.0046-10.931 7.1767-12.036 6.3797s2.6827-12.14 2.2574-13.434c-0.42533-1.2941-10.203-8.1785-9.7868-9.4754 0.41657-1.297 12.375-1.2 13.474-2.0044s4.6252-12.231 5.9874-12.236z"/></g></svg>

lib/provider/data.dart

@@ -5,7 +5,7 @@ class Data extends ChangeNotifier {
 
   // Configuration available values
   List _availableLangValues = ['fr'];
-  List _availableWordLengthValues = ['4', '5'];
+  List _availableWordLengthValues = ['4', '5', '6'];
   List _availableLevelValues = ['easy', 'normal'];
   List _availableSkinValues = ['default'];