diff --git a/themes/slate-es-de/README.md b/themes/slate-es-de/README.md
index 1ad93ef57..e0e106764 100644
--- a/themes/slate-es-de/README.md
+++ b/themes/slate-es-de/README.md
@@ -24,10 +24,11 @@ The following options are included:
 - 4:3
 - 4:3 vertical
 
-14 languages:
+15 languages:
 
 - English (United States)
 - English (United Kingdom)
+- Català
 - Deutsch
 - Español (España)
 - Français
diff --git a/themes/slate-es-de/capabilities.xml b/themes/slate-es-de/capabilities.xml
index daf105168..6e8ad339c 100644
--- a/themes/slate-es-de/capabilities.xml
+++ b/themes/slate-es-de/capabilities.xml
@@ -7,6 +7,7 @@
 
     <language>en_US</language>
     <language>en_GB</language>
+    <language>ca_ES</language>
     <language>de_DE</language>
     <language>es_ES</language>
     <language>fr_FR</language>
@@ -31,6 +32,7 @@
     <colorScheme name="dark">
         <label language="en_US">Dark</label>
         <label language="en_GB">Dark</label>
+        <label language="ca_ES">Fosc</label>
         <label language="de_DE">Dunkel</label>
         <label language="es_ES">Oscuro</label>
         <label language="fr_FR">Foncé</label>
@@ -48,6 +50,7 @@
     <colorScheme name="light">
         <label language="en_US">Light</label>
         <label language="en_GB">Light</label>
+        <label language="ca_ES">Clar</label>
         <label language="de_DE">Hell</label>
         <label language="es_ES">Claro</label>
         <label language="fr_FR">Clair</label>
@@ -65,6 +68,7 @@
     <transitions name="slide">
         <label language="en_US">Slide</label>
         <label language="en_GB">Slide</label>
+        <label language="ca_ES">Lliscar</label>
         <label language="de_DE">Gleiten</label>
         <label language="es_ES">Deslizante</label>
         <label language="fr_FR">Glissement</label>
@@ -87,6 +91,7 @@
     <transitions name="instant">
         <label language="en_US">Instant</label>
         <label language="en_GB">Instant</label>
+        <label language="ca_ES">Instantani</label>
         <label language="de_DE">Sofort</label>
         <label language="es_ES">Instantanea</label>
         <label language="fr_FR">Instantané</label>
@@ -111,6 +116,7 @@
     <transitions name="fade">
         <label language="en_US">Fade</label>
         <label language="en_GB">Fade</label>
+        <label language="ca_ES">Desaparèixer</label>
         <label language="de_DE">Überblendung</label>
         <label language="es_ES">Fundido</label>
         <label language="fr_FR">Fondu</label>
@@ -141,6 +147,7 @@
     <variant name="withVideos">
         <label language="en_US">Textlist with videos</label>
         <label language="en_GB">Textlist with videos</label>
+        <label language="ca_ES">Llistat amb vídeos</label>
         <label language="de_DE">Liste mit videos</label>
         <label language="es_ES">Lista con videos</label>
         <label language="fr_FR">Liste avec vidéos</label>
@@ -164,6 +171,7 @@
     <variant name="withoutVideos">
         <label language="en_US">Textlist without videos</label>
         <label language="en_GB">Textlist without videos</label>
+        <label language="ca_ES">Llistat sense vídeos</label>
         <label language="de_DE">Liste ohne videos</label>
         <label language="es_ES">Lista sin videos</label>
         <label language="fr_FR">Liste sans vidéos</label>
diff --git a/themes/slate-es-de/languages.xml b/themes/slate-es-de/languages.xml
index a6cadf8a6..eb7b4d9e1 100644
--- a/themes/slate-es-de/languages.xml
+++ b/themes/slate-es-de/languages.xml
@@ -8,6 +8,16 @@
         <langLabelPlayers>Players</langLabelPlayers>
         <langLabelLastPlayed>Last Played</langLabelLastPlayed>
     </variables>
+    <language name="ca_ES">
+        <variables>
+            <langLabelReleasedate>Llançament</langLabelReleasedate>
+            <langLabelDeveloper>Desenvolupador</langLabelDeveloper>
+            <langLabelPublisher>Editor</langLabelPublisher>
+            <langLabelGenre>Gènere</langLabelGenre>
+            <langLabelPlayers>Jugadors</langLabelPlayers>
+            <langLabelLastPlayed>Última Partida</langLabelLastPlayed>
+        </variables>
+    </language>
     <language name="de_DE">
         <variables>
             <langLabelReleasedate>Veröffentlicht</langLabelReleasedate>