diff --git a/Makefile b/Makefile
index cf855d8..1015463 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,8 @@ PORT = 3000
 
 ESLINT?=eslint
 
+TIDY?=tidy
+
 ifeq (, $(shell which $(firstword ${ESLINT})))
 	ESLINT?=npx eslint
 endif
@@ -34,5 +36,8 @@ public/dict/list.js:
 eslint:
 	-${ESLINT} **/*.js
 
+tidy:
+	-${TIDY} -xml -errors -q public/*.html
+
 start-dev-server: lang
 	cd server && make start-dev-server
diff --git a/l10n/po/fr/trivabble.po b/l10n/po/fr/trivabble.po
index a626f20..22e779c 100644
--- a/l10n/po/fr/trivabble.po
+++ b/l10n/po/fr/trivabble.po
@@ -262,10 +262,26 @@ msgstr "Chronométrer la partie"
 msgid  "To measure playing time, activate the timer."
 msgstr "Pour mesurer les temps de jeu, activez le chronomètre."
 
+msgid  "Cell captions:"
+msgstr "Légendes des cellules :"
+
+msgid  "Clip when overflow"
+msgstr "Raccourcies en cas de débordement"
+
+msgid  "Dots when overflow"
+msgstr "Pointillés en cas de débordement"
+
+msgid  "No caption"
+msgstr "Pas de légende"
+
+msgid  "Short caption"
+msgstr "Légendes courtes"
+
 msgid  "Board label:"
 msgstr "Type du plateau"
 
 msgid  "Are you sure you want to change board to {0}? This will put all the tiles back in the bag and start another game."
 msgstr "Êtes-vous sûr·e de vouloir de changer le type du plateau à {0} ? Cela remettra toutes les lettres du jeu dans le sac et commencera une nouvelle partie."
+
 msgid  "Can't find board '{0}'. Change board or start a new game."
 msgstr "Impossible de trouver le plateau de type '{0}'. Changez de type de plateau ou démarrez une nouvelle partie."
diff --git a/l10n/pot/trivabble.pot b/l10n/pot/trivabble.pot
index a2b2f2b..3781b8d 100644
--- a/l10n/pot/trivabble.pot
+++ b/l10n/pot/trivabble.pot
@@ -267,6 +267,21 @@ msgstr ""
 msgid  "To measure playing time, activate the timer."
 msgstr ""
 
+msgid  "Cell captions:"
+msgstr ""
+
+msgid  "Clip when overflow"
+msgstr ""
+
+msgid  "Dots when overflow"
+msgstr ""
+
+msgid  "No caption"
+msgstr ""
+
+msgid  "Short caption"
+msgstr ""
+
 msgid  "Board label:"
 msgstr ""
 
diff --git a/public/config.js.sample b/public/config.js.sample
index 59619b9..601e503 100644
--- a/public/config.js.sample
+++ b/public/config.js.sample
@@ -3,46 +3,55 @@
 
 window.TrivabbleConf = {
     // The amount of time to wait after a connection failure
-    POLLING_DELAY:        2000,
+    //POLLING_DELAY:        2000,
 
     // Whether WebSockets should be used, if possible
-    ENABLE_WEBSOCKETS:    true,
+    //ENABLE_WEBSOCKETS:    true,
 
     // Whether Server Sent Events should be used, if available
-    ENABLE_EVENT_SOURCE:  true,
+    //ENABLE_EVENT_SOURCE:  true,
 
     // Max consecutive tries before blacklisting WebSockets for the current session
-    MAX_WEBSOCKET_ERRORS: 1,
+    //MAX_WEBSOCKET_ERRORS: 1,
 
     // To tweak only if your webserver is shared with other conflicting resources at / (e.g. Yunohost integration)
-    APP_PATH: "",
+    //APP_PATH: "",
 
     // The API entry point. Default value: APP_PATH + '/:trivabble'
-    API_ENTRY_POINT: "/:trivabble",
+    //API_ENTRY_POINT: "/:trivabble",
 
-    // The color of the flash light when double clicking on a cell
-    FLASH_LIGHT_COLOR: "#EE6633",
+    // Wether sounds should be played when receiving messages
+    //ENABLE_MSG_SOUND: true,
 
-    // The list of durations of the flash light available in the settings box
-    FLASH_LIGHT_DURATIONS: [800, 1600, 3200],
-
-    // The defaut flash light duration. If not set, the value at the middle of the previous array is used.
-    FLASH_LIGHT_DURATION: 1600,
+    // Wether sounds should be played when moving tiles
+    //ENABLE_TILE_SOUND: true,
 
     // The list of durations used to detect a double tap available in the settings box
-    DOUBLE_TAP_DURATIONS: [650, 1100, 1800, 3000, 5000],
+    //DOUBLE_TAP_DURATIONS: [650, 1100, 1800, 3000, 5000],
 
     // The defaut double tap duration. If not set, the value at the middle of the previous array is used.
-    DOUBLE_TAP_DURATION: 1800,
+    //DOUBLE_TAP_DURATION: 1800,
+
+    // The color of the flash light when double clicking on a cell
+    //FLASH_LIGHT_COLOR: "#EE6633",
+
+    // The list of durations of the flash light available in the settings box
+    //FLASH_LIGHT_DURATIONS: [800, 1600, 3200],
+
+    // The defaut flash light duration. If not set, the value at the middle of the previous array is used.
+    //FLASH_LIGHT_DURATION: 1600,
 
     // The default premium for playing seven tiles on a turn
-    PREMIUM_SEVEN_TILES: 50,
+    //PREMIUM_SEVEN_TILES: 50,
 
     // Score is automically affected to last player. If false, score is automatically affected to the player who pressed the Score button
-    SCORE_LAST_PLAYER: true,
+    //SCORE_LAST_PLAYER: true,
 
     // Timer activation
-    ENABLE_TIMER: false,
+    //ENABLE_TIMER: false,
+
+    // Cell captions. Could be "clip", "dots", "none" or "short"
+    //CELL_CAPTIONS: "dots",
 
     // I don't like trailing commas, here is a nice message for you reading this file :-)
     HAVE_FUN: true
diff --git a/public/index.html b/public/index.html
index 6ba07e0..ebb2611 100644
--- a/public/index.html
+++ b/public/index.html
@@ -108,6 +108,19 @@
                         </label>
                     </p>
                 </div>
+                <div>
+                    <p id="cell-captions-p">
+                        <label>
+                            <span data-l10n="text-content">Cell captions:</span>
+                            <select id="cell-captions">
+                                <option value="clip" data-l10n="text-content">Clip when overflow</option>
+                                <option value="dots" data-l10n="text-content">Dots when overflow</option>
+                                <option value="none" data-l10n="text-content">No caption</option>
+                                <option value="short" data-l10n="text-content">Short caption</option>
+                            </select>
+                        </label>
+                    </p>
+                </div>
             </div>
         </section>
 
diff --git a/public/trivabble.css b/public/trivabble.css
index 85127fd..b36d130 100644
--- a/public/trivabble.css
+++ b/public/trivabble.css
@@ -122,10 +122,25 @@ html, #board, [draggable], .tile {
     display:inline-block;
     white-space:pre-wrap;
     font-size:7px;
-    text-overflow:ellipsis;
     overflow:hidden;
 }
 
+.special-cell-label-clip .special-cell-label {
+    text-overflow:clip;
+}
+
+.special-cell-label-dots .special-cell-label {
+    text-overflow:ellipsis;
+}
+
+.special-cell-label-none .special-cell-label {
+    visibility:hidden;
+}
+
+.special-cell-label-short .special-cell-label {
+    display:inline;
+}
+
 #center-cell .special-cell-label {
     font-weight:bold;
     color:black;
diff --git a/public/trivabble.js b/public/trivabble.js
index 53125e5..93699af 100644
--- a/public/trivabble.js
+++ b/public/trivabble.js
@@ -54,17 +54,18 @@
     setConf("ENABLE_EVENT_SOURCE",   true);
     setConf("MAX_WEBSOCKET_ERRORS",  1);
     setConf("APP_PATH",              "");
+    setConf("API_ENTRY_POINT",       Conf.APP_PATH + "/:trivabble");
     setConf("ENABLE_MSG_SOUND",      true);
     setConf("ENABLE_TILE_SOUND",     true);
     setConf("DOUBLE_TAP_DURATIONS",  [650, 1100, 1800, 3000, 5000]);
     setConf("DOUBLE_TAP_DURATION",   middle("DOUBLE_TAP_DURATIONS"));
+    setConf("FLASH_LIGHT_COLOR",     "#ee6633");
     setConf("FLASH_LIGHT_DURATIONS", [800, 1600, 3200]);
     setConf("FLASH_LIGHT_DURATION",  middle("FLASH_LIGHT_DURATIONS"));
-    setConf("FLASH_LIGHT_COLOR",     "#ee6633");
-    setConf("API_ENTRY_POINT",       Conf.APP_PATH + "/:trivabble");
     setConf("PREMIUM_SEVEN_TILES",   50);
     setConf("SCORE_LAST_PLAYER",     true);
     setConf("ENABLE_TIMER",          false);
+    setConf("CELL_CAPTIONS",         "dots"); // "clip", "dots", "none", "short"
 
     function isSetting(key) {
         return Object.prototype.hasOwnProperty.call(Conf, key) ||
@@ -138,7 +139,13 @@
                 (type === "number") ||
                 (type === "object") ||
                 (type === "string")) {
-                localStorage.setItem("trivabble" + key, value);
+                if (Object.prototype.hasOwnProperty.call(Conf, key) && (Conf[key] === value)) {
+                    if (Object.prototype.hasOwnProperty.call(localStorage, "trivabble" + key)) {
+                        delete localStorage["trivabble" + key];
+                    }
+                } else {
+                    localStorage.setItem("trivabble" + key, value);
+                }
             } else {
                 console.error("Unsupported type");
             }
@@ -148,15 +155,14 @@
     }
 
     const SettingsTypes = {
-        SpellCheckerEnabledOnce: "boolean",
+        BoardLang: "string",
         DisableSpellChecker: "boolean",
         GameNumber: "number",
         BoardLang: "string",
         BoardLabel: "string",
         Lang: "string",
         PlayerName: "string",
-        Timer: "number",
-        TimerEnable: "boolean",
+        SpellCheckerEnabledOnce: "boolean",
         TimerGameDate: "number",
         TimerTurnDate: "number"
     };
@@ -1410,7 +1416,7 @@
             webSocket = new WebSocket(
                 (window.location.protocol === "http:" ? "ws://" : "wss://") +
                 window.location.host +
-                Conf.API_ENTRY_POINT + "/ws/" +
+                getSetting("API_ENTRY_POINT") + "/ws/" +
                 JSON.stringify(cmdsWithContext())
             );
 
@@ -1424,7 +1430,7 @@
     function xhrRequest(data, onreadystatechange) {
         const xhr = new XMLHttpRequest();
 
-        xhr.open("POST", Conf.API_ENTRY_POINT, true);
+        xhr.open("POST", getSetting("API_ENTRY_POINT"), true);
         xhr.setRequestHeader("Content-Type", "text/plain");
         xhr.send(JSON.stringify(data));
 
@@ -1573,17 +1579,25 @@
     }
 
     const specialTypesText = {
-        doubleLetter: _("Double\nLetter"),
-        doubleWord:   _("Double\nWord"),
-        tripleLetter: _("Triple\nLetter"),
-        tripleWord:   _("Triple\nWord")
+        doubleLetter: "Double\nLetter",
+        doubleWord:   "Double\nWord",
+        tripleLetter: "Triple\nLetter",
+        tripleWord:   "Triple\nWord"
+    };
+
+    const specialTypesShortText = {
+        doubleLetter: "DL",
+        doubleWord:   "DW",
+        tripleLetter: "TL",
+        tripleWord:   "TW"
     };
 
     function specialCell(type, cell) {
         cell.firstChild.appendChild(document.createElement("span"));
         cell.classList.add("special-cell");
         cell.classList.add("special-cell-" + type);
-        cell.lastChild.lastChild.textContent = cell.title =  _(specialTypesText[type]);
+        cell.lastChild.lastChild.longText = cell.title = _(specialTypesText[type]);
+        cell.lastChild.lastChild.shortText = _(specialTypesShortText[type]);
         cell.lastChild.lastChild.className = "special-cell-label";
     }
 
@@ -2316,7 +2330,7 @@
             setTimerState(document.getElementById("enable-timer").checked);
         };
 
-        setTimerState(getSetting("TimerEnable", getSetting("ENABLE_TIMER")));
+        setTimerState(getSetting("ENABLE_TIMER"));
     }
 
     let timerTimeout = 0;
@@ -2328,7 +2342,7 @@
     }
 
     function setTimerState(enabled) {
-        setSetting("TimerEnable", enabled);
+        setSetting("ENABLE_TIMER", enabled);
         if (timerTimeout) {
             clearInterval(timerTimeout);
             timerTimeout = 0;
@@ -2346,6 +2360,32 @@
         }
     }
 
+    function initCellCaptions() {
+        setCellCaptions(getSetting("CELL_CAPTIONS"));
+
+        document.getElementById("cell-captions").onchange = function () {
+            setCellCaptions(document.getElementById("cell-captions").value);
+            setSetting("CELL_CAPTIONS", mode);
+        };
+    }
+
+    function setCellCaptions(mode) {
+        document.getElementById("cell-captions").value = mode;
+
+        board.classList.remove("special-cell-label-short");
+        board.classList.remove("special-cell-label-clip");
+        board.classList.remove("special-cell-label-dots");
+        board.classList.remove("special-cell-label-none");
+
+        for (const cell of [].slice.call(document.getElementsByClassName("special-cell-label"))) {
+            if (cell.textContent !== "★") {
+                cell.textContent = (mode === "short") ? cell.shortText : cell.longText;
+            }
+        }
+
+        board.classList.add("special-cell-label-" + mode);
+    }
+
     function repromptName(f) {
         if (getSetting("PlayerName") && getSetting("PlayerName").trim()) {
             f();
@@ -2465,6 +2505,7 @@
                         setSetting("PlayerName", name);
                     }
                     repromptName(initGame);
+                    setCellCaptions(getSetting("CELL_CAPTIONS"));
                 }
             );
 
@@ -2602,6 +2643,7 @@
         initFlashLight();
         nextHelpMessage();
         initTimer();
+        initCellCaptions();
     };
 
     trivabble.l10nError = trivabble.run;