diff --git a/daemon.py b/daemon.py
index 9007ed3b6..152285641 100644
--- a/daemon.py
+++ b/daemon.py
@@ -179,6 +179,8 @@ from cache import getPersonFromCache
 from httpsig import verifyPostHeaders
 from theme import setTheme
 from theme import getTheme
+from theme import enableGrayscale
+from theme import disableGrayscale
 from schedule import runPostSchedule
 from schedule import runPostScheduleWatchdog
 from schedule import removeScheduledPosts
@@ -6494,6 +6496,14 @@ class PubServer(BaseHTTPRequestHandler):
                                 if actorJson['type'] != 'Person':
                                     actorJson['type'] = 'Person'
                                     actorChanged = True
+                        grayscale = False
+                        if fields.get('grayscale'):
+                            if fields['grayscale'] == 'on':
+                                grayscale = True
+                        if grayscale:
+                            enableGrayscale(self.server.baseDir)
+                        else:
+                            disableGrayscale(self.server.baseDir)
                         # save filtered words list
                         filterFilename = \
                             self.server.baseDir + '/accounts/' + \
diff --git a/epicyon-calendar.css b/epicyon-calendar.css
index 4a1148133..f31f86188 100644
--- a/epicyon-calendar.css
+++ b/epicyon-calendar.css
@@ -1,4 +1,5 @@
 :root {
+    --grayscale: 0%;
     --main-bg-color: #282c37;
     --calendar-bg-color: #eee;
     --lines-color: black;
@@ -38,6 +39,7 @@ body {
     font-family: 'Montserrat';
     font-weight: 700;
     min-height: 100vh;
+    filter: grayscale(--grayscale);
 }
 
 main {
@@ -180,10 +182,12 @@ tr:nth-child(even) > .calendar__day__cell:nth-child(even) {
 }
 
 .calendardayicon {
+    filter: grayscale(--grayscale);
     width: 100%
 }
 
 .buttonprev {
+    filter: grayscale(--grayscale);
     float: left;
     width: 10%;
     -ms-transform: translateY(30%);
@@ -191,6 +195,7 @@ tr:nth-child(even) > .calendar__day__cell:nth-child(even) {
 }
 
 .buttonnext {
+    filter: grayscale(--grayscale);
     float: right;
     width: 10%;
     -ms-transform: translateY(30%) scaleX(-1);
diff --git a/epicyon-follow.css b/epicyon-follow.css
index 6981ea92a..3df55b7c1 100644
--- a/epicyon-follow.css
+++ b/epicyon-follow.css
@@ -1,6 +1,7 @@
 @charset "UTF-8";
 
 :root {
+    --grayscale: 0%;
     --main-bg-color: #282c37;
     --link-bg-color: #282c37;
     --main-fg-color: #dddddd;
@@ -49,6 +50,7 @@ body, html {
     max-width: 100%;
     min-width: 600px;
     margin: 5% auto;
+    filter: grayscale(--grayscale);
 }
 
 a, u {
@@ -89,6 +91,7 @@ a:link {
 }
 
 .followAvatar img {
+    filter: grayscale(--grayscale);
     border-radius: 10%;
     width: 20%;
     min-width: 200px;
@@ -168,6 +171,7 @@ input[type=text] {
 }
 
 .options img {
+    filter: grayscale(--grayscale);
     width: 15%;
 }
 
diff --git a/epicyon-login.css b/epicyon-login.css
index c0279dc8b..2b3737010 100644
--- a/epicyon-login.css
+++ b/epicyon-login.css
@@ -1,6 +1,7 @@
 @charset "UTF-8";
 
 :root {
+    --grayscale: 0%;
     --main-bg-color: #282c37;
     --link-bg-color: #282c37;
     --main-fg-color: #dddddd;
@@ -40,6 +41,7 @@ body, html {
     min-width: 600px;
     margin: 0 auto;
     font-size: var(--font-size);
+    filter: grayscale(--grayscale);
 }
 
 a, u {
@@ -96,11 +98,13 @@ button:hover {
 }
 
 .imgcontainer {
+    filter: grayscale(--grayscale);
     text-align: center;
     margin: 24px 0 12px 0;
 }
 
 img.avatar {
+    filter: grayscale(--grayscale);
     width: 40%;
     border-radius: 50%;
 }
diff --git a/epicyon-profile.css b/epicyon-profile.css
index 247b8449e..0755aa0b7 100644
--- a/epicyon-profile.css
+++ b/epicyon-profile.css
@@ -1,6 +1,7 @@
 @charset "UTF-8";
 
 :root {
+    --grayscale: 0%;
     --main-bg-color: #282c37;
     --link-bg-color: #282c37;
     --dropdown-fg-color: #dddddd;
@@ -70,6 +71,7 @@ body, html {
     min-width: 950px;
     margin: 0 auto;
     font-size: var(--font-size);
+    filter: grayscale(--grayscale);
 }
 
 a, u {
@@ -107,6 +109,7 @@ a:link {
 }
 
 .rssfeed img {
+    filter: grayscale(--grayscale);
     width: 5%;
     float: right;
 }
@@ -144,6 +147,7 @@ a:link {
 }
 
 .hero-image img {
+    filter: grayscale(--grayscale);
     width: 50%;
 }
 
@@ -175,6 +179,7 @@ a:link {
 }
 
 .hero-text img.emoji {
+    filter: grayscale(--grayscale);
     width: 50px;
     padding: 0 0;
     margin: 0 0;
@@ -306,6 +311,7 @@ a:link {
 }
 
 .container img.emoji {
+    filter: grayscale(--grayscale);
     float: none;
     width: 50px;
     margin-left: 0px;
@@ -316,6 +322,7 @@ a:link {
 }
 
 .hero-text img.emojiprofile {
+    filter: grayscale(--grayscale);
     float: none;
     width: 50px;
     margin-left: 0px;
@@ -349,6 +356,7 @@ a:link {
 }
 
 .container img.announceOrReply {
+    filter: grayscale(--grayscale);
     float: none;
     width: 30px;
     margin: 0 0;
@@ -358,6 +366,7 @@ a:link {
 }
 
 .container img.DMicon {
+    filter: grayscale(--grayscale);
     float: none;
     width: 40px;
     margin: 0 0;
@@ -380,12 +389,14 @@ a:link {
 }
 
 .container img.attachment {
+    filter: grayscale(--grayscale);
     max-width: 120%;
     margin-left: 5%;
     width: 120%;
     padding-bottom: 3%;
 }
 .container img.right {
+    filter: grayscale(--grayscale);
     float: var(--icons-side);
     margin-left: 0px;
     margin-right:0;
@@ -393,6 +404,7 @@ a:link {
     margin: 0 0;
 }
 .containericons img.right {
+    filter: grayscale(--grayscale);
     float: var(--icons-side);
     margin-left: 20px;
     margin-right: 0;
@@ -526,6 +538,7 @@ input[type=submit]:hover {
 }
 
 .dropdown img {
+    filter: grayscale(--grayscale);
     opacity: 1.0;
     width: 32px;
     height: 32px;
@@ -550,6 +563,7 @@ input[type=submit]:hover {
 }
 
 .search-result img {
+    filter: grayscale(--grayscale);
     width: 7%;
     padding: 0px 30px;
 }
@@ -574,6 +588,7 @@ input[type=submit]:hover {
 }
 
 .dropdown-content img {
+    filter: grayscale(--grayscale);
     width: 32px;
     height: 32px;
     padding: 0px 0px;
@@ -623,6 +638,7 @@ input[type=submit]:hover {
 }
 
 .dropbtn img {
+    filter: grayscale(--grayscale);
     opacity: 1.0;
     width: 3%;
     height: 3%;
@@ -636,6 +652,7 @@ div.gallery:hover {
 }
 
 div.gallery img {
+    filter: grayscale(--grayscale);
     width: 100%;
     height: auto;
 }
@@ -879,6 +896,7 @@ aside .toggle-inside li {
         text-align: center;
     }
     .container img {
+	filter: grayscale(--grayscale);
         float: left;
         max-width: 400px;
         width: 5%;
@@ -887,10 +905,12 @@ aside .toggle-inside li {
         border-radius: var(--image-corners);
     }
     .container img.emojisearch {
+	filter: grayscale(--grayscale);
         width: 15%;
         float: right;
     }
     .container img.emojicalendar {
+	filter: grayscale(--grayscale);
         float: left;
         max-width: 400px;
         width: 8%;
@@ -898,6 +918,7 @@ aside .toggle-inside li {
         transform: translateY(-25%);
     }
     .container img.timelineicon {
+	filter: grayscale(--grayscale);
         float: var(--icons-side);
         margin-left: 0px;
         margin-right:0;
@@ -906,6 +927,7 @@ aside .toggle-inside li {
         width: 50px;
     }
     .container img.emojiheader {
+	filter: grayscale(--grayscale);
         float: none;
         width: 25px;
         margin-left: 0px;
@@ -915,6 +937,7 @@ aside .toggle-inside li {
         vertical-align: middle;
     }
     .containericons img {
+	filter: grayscale(--grayscale);
         float: var(--icons-side);
         max-width: 200px;
         width: 3%;
@@ -922,6 +945,7 @@ aside .toggle-inside li {
         border-radius: 0%;
     }
     div.mediaicons img {
+	filter: grayscale(--grayscale);
         float: right;
         max-width: 200px;
         width: 6%;
@@ -929,6 +953,7 @@ aside .toggle-inside li {
         border-radius: 0%;
     }
     div.mediaavatar img {
+	filter: grayscale(--grayscale);
         float: left;
         max-width: 200px;
         width: 5%;
@@ -936,6 +961,7 @@ aside .toggle-inside li {
         border-radius: 0%;
     }
     .timeline-avatar img {
+	filter: grayscale(--grayscale);
         opacity: 1.0;
         width: 8%;
         height: 8%;
@@ -1191,20 +1217,24 @@ aside .toggle-inside li {
         font-family: Arial, Helvetica, sans-serif;
     }
     .hero-text img.qrcode {
+	filter: grayscale(--grayscale);
         border-radius: 1%;
         width: 5%;
         min-width: 20px;
     }
     .hero-text img.title {
+	filter: grayscale(--grayscale);
         border-radius: 1%;
         width: 15%;
     }
     #msgscope label img {
+	filter: grayscale(--grayscale);
         width: 46px;
         height: 46px;
         padding: 0px 0px;
     }
     .toggle-msgScope img {
+	filter: grayscale(--grayscale);
         width: 32px;
         height: 32px;
         padding: 0px 0px;
@@ -1280,6 +1310,7 @@ aside .toggle-inside li {
         text-align: center;
     }
     .container img {
+	filter: grayscale(--grayscale);
         float: left;
         max-width: 400px;
         width: 15%;
@@ -1288,10 +1319,12 @@ aside .toggle-inside li {
         border-radius: var(--image-corners);
     }
     .container img.emojisearch {
+	filter: grayscale(--grayscale);
         width: 25%;
         float: right;
     }
     .container img.emojicalendar {
+	filter: grayscale(--grayscale);
         float: left;
         max-width: 400px;
         width: 12%;
@@ -1299,6 +1332,7 @@ aside .toggle-inside li {
         transform: translateY(-25%);
     }
     .container img.timelineicon {
+	filter: grayscale(--grayscale);
         float: var(--icons-side);
         margin-left: 0px;
         margin-right:0;
@@ -1307,6 +1341,7 @@ aside .toggle-inside li {
         width: 100px;
     }
     .container img.emojiheader {
+	filter: grayscale(--grayscale);
         float: none;
         width: 45px;
         margin-left: 0px;
@@ -1316,6 +1351,7 @@ aside .toggle-inside li {
         vertical-align: middle;
     }
     div.mediaavatar img {
+	filter: grayscale(--grayscale);
         float: left;
         max-width: 200px;
         width: 8%;
@@ -1323,6 +1359,7 @@ aside .toggle-inside li {
         border-radius: 0%;
     }
     div.mediaicons img {
+	filter: grayscale(--grayscale);
         float: right;
         max-width: 200px;
         width: 10%;
@@ -1330,6 +1367,7 @@ aside .toggle-inside li {
         border-radius: 0%;
     }
     .containericons img {
+	filter: grayscale(--grayscale);
         float: var(--icons-side);
         max-width: 200px;
         width: 7%;
@@ -1337,6 +1375,7 @@ aside .toggle-inside li {
         border-radius: 0%;
     }
     .timeline-avatar img {
+	filter: grayscale(--grayscale);
         opacity: 1.0;
         width: 15%;
         height: 15%;
@@ -1592,20 +1631,24 @@ aside .toggle-inside li {
         font-family: Arial, Helvetica, sans-serif;
     }
     .hero-text img.qrcode {
+	filter: grayscale(--grayscale);
         border-radius: 1%;
         width: 15%;
         min-width: 20px;
     }
     .hero-text img.title {
+	filter: grayscale(--grayscale);
         border-radius: 1%;
         width: 25%;
     }
     #msgscope label  img {
+	filter: grayscale(--grayscale);
         width: 64px;
         height: 64px;
         padding: 0px 0px;
     }
     .toggle-msgScope img {
+	filter: grayscale(--grayscale);
         width: 64px;
         height: 64px;
         margin: -15px 0px;
diff --git a/theme.py b/theme.py
index 1dc49d0fb..fea2cfdfc 100644
--- a/theme.py
+++ b/theme.py
@@ -87,7 +87,8 @@ def setCSSparam(css: str, param: str, value: str) -> str:
 def setThemeFromDict(baseDir: str, name: str, themeParams: {}) -> None:
     """Uses a dictionary to set a theme
     """
-    setThemeInConfig(baseDir, name)
+    if name:
+        setThemeInConfig(baseDir, name)
     themeFiles = ('epicyon.css', 'login.css', 'follow.css',
                   'suspended.css', 'calendar.css', 'blog.css')
     for filename in themeFiles:
@@ -144,6 +145,29 @@ def setCustomFont(baseDir: str):
                 cssfile.write(css)
 
 
+def enableGrayscale(baseDir: str):
+    removeTheme(baseDir)
+    themeParams = {
+        "grayscale": "100%"
+    }
+    setThemeFromDict(baseDir, None, themeParams)
+    grayscaleFilename = baseDir + '/accounts/.grayscale'
+    if not os.path.isfile(grayscaleFilename):
+        with open(grayscaleFilename, 'w') as grayfile:
+            grayfile.write(' ')
+
+
+def disableGrayscale(baseDir: str):
+    removeTheme(baseDir)
+    themeParams = {
+        "grayscale": "0%"
+    }
+    setThemeFromDict(baseDir, None, themeParams)
+    grayscaleFilename = baseDir + '/accounts/.grayscale'
+    if os.path.isfile(grayscaleFilename):
+        os.remove(grayscaleFilename)
+
+
 def setThemeDefault(baseDir: str):
     removeTheme(baseDir)
     setThemeInConfig(baseDir, 'default')
@@ -613,4 +637,9 @@ def setTheme(baseDir: str, name: str) -> bool:
         result = True
 
     setCustomFont(baseDir)
+    grayscaleFilename = baseDir + '/accounts/.grayscale'
+    if os.path.isfile(grayscaleFilename):
+        enableGrayscale(baseDir)
+    else:
+        disableGrayscale(baseDir)
     return result
diff --git a/translations/ar.json b/translations/ar.json
index 54d95f0fe..cf3cad0fb 100644
--- a/translations/ar.json
+++ b/translations/ar.json
@@ -250,5 +250,6 @@
     "Better luck next time": "حظ أوفر في المرة القادمة",
     "Unavailable": "غير متوفره",
     "The server is busy. Please try again later": "الخادم مشغول. الرجاء معاودة المحاولة في وقت لاحق",
-    "Receive calendar events from this account": "تلقي أحداث التقويم من هذا الحساب"
+    "Receive calendar events from this account": "تلقي أحداث التقويم من هذا الحساب",
+    "Grayscale": "درجات الرمادي"
 }
diff --git a/translations/ca.json b/translations/ca.json
index dd8dda946..cfb4be41c 100644
--- a/translations/ca.json
+++ b/translations/ca.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Que tingueu més sort la propera vegada",
     "Unavailable": "No disponible",
     "The server is busy. Please try again later": "El servidor està ocupat. Siusplau, intenta-ho més tard",
-    "Receive calendar events from this account": "Rep esdeveniments del calendari des d’aquest compte"
+    "Receive calendar events from this account": "Rep esdeveniments del calendari des d’aquest compte",
+    "Grayscale": "Escala de grisos"
 }
diff --git a/translations/cy.json b/translations/cy.json
index cdf3f64ed..508955a57 100644
--- a/translations/cy.json
+++ b/translations/cy.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Gwell lwc y tro nesaf",
     "Unavailable": "Ddim ar gael",
     "The server is busy. Please try again later": "Mae'r gweinydd yn brysur. Rho gynnig Arni eto'n hwyrach",
-    "Receive calendar events from this account": "Derbyn digwyddiadau calendr o'r cyfrif hwn"
+    "Receive calendar events from this account": "Derbyn digwyddiadau calendr o'r cyfrif hwn",
+    "Grayscale": "Graddlwyd"
 }
diff --git a/translations/de.json b/translations/de.json
index 846c781a8..63919ff73 100644
--- a/translations/de.json
+++ b/translations/de.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Viel Glück beim nächsten Mal",
     "Unavailable": "Nicht verfügbar",
     "The server is busy. Please try again later": "Der Server ist beschäftigt. Bitte versuchen Sie es später noch einmal",
-    "Receive calendar events from this account": "Erhalten Sie Kalenderereignisse von diesem Konto"
+    "Receive calendar events from this account": "Erhalten Sie Kalenderereignisse von diesem Konto",
+    "Grayscale": "Graustufen"
 }
diff --git a/translations/en.json b/translations/en.json
index a8f3c2f7e..3f8e37521 100644
--- a/translations/en.json
+++ b/translations/en.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Better luck next time",
     "Unavailable": "Unavailable",
     "The server is busy. Please try again later": "The server is busy. Please try again later",
-    "Receive calendar events from this account": "Receive calendar events from this account"
+    "Receive calendar events from this account": "Receive calendar events from this account",
+    "Grayscale": "Grayscale"
 }
diff --git a/translations/es.json b/translations/es.json
index d3c74acef..a49c3e296 100644
--- a/translations/es.json
+++ b/translations/es.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Mejor suerte la próxima vez",
     "Unavailable": "Indisponible",
     "The server is busy. Please try again later": "El servidor esta ocupado. Por favor, inténtelo de nuevo más tarde",
-    "Receive calendar events from this account": "Recibe eventos de calendario de esta cuenta"
+    "Receive calendar events from this account": "Recibe eventos de calendario de esta cuenta",
+    "Grayscale": "Escala de grises"
 }
diff --git a/translations/fr.json b/translations/fr.json
index 1ce7efc35..3b59c6ce2 100644
--- a/translations/fr.json
+++ b/translations/fr.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Plus de chance la prochaine fois",
     "Unavailable": "Indisponible",
     "The server is busy. Please try again later": "Le serveur est occupé. Veuillez réessayer plus tard",
-    "Receive calendar events from this account": "Recevoir des événements d'agenda de ce compte"
+    "Receive calendar events from this account": "Recevoir des événements d'agenda de ce compte",
+    "Grayscale": "Niveaux de gris"
 }
diff --git a/translations/ga.json b/translations/ga.json
index d8073b3af..f905ea89e 100644
--- a/translations/ga.json
+++ b/translations/ga.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Ádh níos fearr an chéad uair eile",
     "Unavailable": "Níl sé ar fáil",
     "The server is busy. Please try again later": "Tá an freastalaí gnóthach. Bain triail eile as níos déanaí",
-    "Receive calendar events from this account": "Faigh imeachtaí féilire ón gcuntas seo"
+    "Receive calendar events from this account": "Faigh imeachtaí féilire ón gcuntas seo",
+    "Grayscale": "Liathscála"
 }
diff --git a/translations/hi.json b/translations/hi.json
index d28e07681..253a727a0 100644
--- a/translations/hi.json
+++ b/translations/hi.json
@@ -250,5 +250,6 @@
     "Better luck next time": "अगली बार किस्मत तुम्हारा साथ देगी",
     "Unavailable": "अनुपलब्ध",
     "The server is busy. Please try again later": "सर्वर व्यस्त है। बाद में पुन: प्रयास करें",
-    "Receive calendar events from this account": "इस खाते से कैलेंडर ईवेंट प्राप्त करें"
+    "Receive calendar events from this account": "इस खाते से कैलेंडर ईवेंट प्राप्त करें",
+    "Grayscale": "ग्रेस्केल"
 }
diff --git a/translations/it.json b/translations/it.json
index 92a91a40a..a5d0ace2f 100644
--- a/translations/it.json
+++ b/translations/it.json
@@ -250,5 +250,6 @@
     "Better luck next time": "La prossima volta sarai più fortunato",
     "Unavailable": "non disponibile",
     "The server is busy. Please try again later": "Il server è occupato. Per favore riprova più tardi",
-    "Receive calendar events from this account": "Ricevi eventi di calendario da questo account"
+    "Receive calendar events from this account": "Ricevi eventi di calendario da questo account",
+    "Grayscale": "Scala di grigi"
 }
diff --git a/translations/ja.json b/translations/ja.json
index d7bb800b6..33574f2c2 100644
--- a/translations/ja.json
+++ b/translations/ja.json
@@ -250,5 +250,6 @@
     "Better luck next time": "次回は幸運を",
     "Unavailable": "利用できません",
     "The server is busy. Please try again later": "サーバーはビジーです。 後でもう一度やり直してください",
-    "Receive calendar events from this account": "このアカウントからカレンダーイベントを受信します"
+    "Receive calendar events from this account": "このアカウントからカレンダーイベントを受信します",
+    "Grayscale": "グレースケール"
 }
diff --git a/translations/oc.json b/translations/oc.json
index cb288851d..e1f09dfd5 100644
--- a/translations/oc.json
+++ b/translations/oc.json
@@ -246,5 +246,6 @@
     "Better luck next time": "Better luck next time",
     "Unavailable": "Unavailable",
     "The server is busy. Please try again later": "The server is busy. Please try again later",
-    "Receive calendar events from this account": "Receive calendar events from this account"
+    "Receive calendar events from this account": "Receive calendar events from this account",
+    "Grayscale": "Grayscale"
 }
diff --git a/translations/pt.json b/translations/pt.json
index ccbc94ddc..fa1299000 100644
--- a/translations/pt.json
+++ b/translations/pt.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Mais sorte da próxima vez",
     "Unavailable": "Indisponível",
     "The server is busy. Please try again later": "O servidor está ocupado. Por favor, tente novamente mais tarde",
-    "Receive calendar events from this account": "Receba eventos da agenda desta conta"
+    "Receive calendar events from this account": "Receba eventos da agenda desta conta",
+    "Grayscale": "Escala de cinza"
 }
diff --git a/translations/ru.json b/translations/ru.json
index 616e621e2..c15f68cd4 100644
--- a/translations/ru.json
+++ b/translations/ru.json
@@ -250,5 +250,6 @@
     "Better luck next time": "Повезет в следующий раз",
     "Unavailable": "Недоступен",
     "The server is busy. Please try again later": "Сервер занят. Пожалуйста, попробуйте позже",
-    "Receive calendar events from this account": "Получать события календаря от этого аккаунта"
+    "Receive calendar events from this account": "Получать события календаря от этого аккаунта",
+    "Grayscale": "Оттенки серого"
 }
diff --git a/translations/zh.json b/translations/zh.json
index c378bd5b6..a1886a2c8 100644
--- a/translations/zh.json
+++ b/translations/zh.json
@@ -249,5 +249,6 @@
     "Better luck next time": "下次好运",
     "Unavailable": "不可用",
     "The server is busy. Please try again later": "服务器忙。 请稍后再试",
-    "Receive calendar events from this account": "从该帐户接收日历事件"
+    "Receive calendar events from this account": "从该帐户接收日历事件",
+    "Grayscale": "灰阶"
 }
diff --git a/webinterface.py b/webinterface.py
index c14bd634a..d7e86d6cd 100644
--- a/webinterface.py
+++ b/webinterface.py
@@ -1243,6 +1243,15 @@ def htmlEditProfile(translate: {}, baseDir: str, path: str,
         themes = getThemesList()
         themesDropdown = '<div class="container">'
         themesDropdown += '  <b>' + translate['Theme'] + '</b><br>'
+        grayscaleFilename = \
+            baseDir + '/accounts/.grayscale'
+        grayscale = ''
+        if os.path.isfile(grayscaleFilename):
+            grayscale = 'checked'
+        themesDropdown += \
+            '      <input type="checkbox" class="profilecheckbox" ' + \
+            'name="grayscale" ' + grayscale + \
+            '> ' + translate['Grayscale'] + '<br>'
         themesDropdown += '  <select id="themeDropdown" ' + \
             'name="themeDropdown" class="theme">'
         for themeName in themes: