diff --git a/resources/desktop/com.github.rssguard.appdata.xml b/resources/desktop/com.github.rssguard.appdata.xml
index e10435f80..4ff0313ff 100644
--- a/resources/desktop/com.github.rssguard.appdata.xml
+++ b/resources/desktop/com.github.rssguard.appdata.xml
@@ -26,7 +26,7 @@
   <url type="donation">https://github.com/sponsors/martinrotter</url>
   <content_rating type="oars-1.1" />
   <releases>
-    <release version="4.0.4" date="2021-11-04"/>
+    <release version="4.0.4" date="2021-11-05"/>
   </releases>
   <content_rating type="oars-1.0">
     <content_attribute id="violence-cartoon">none</content_attribute>
diff --git a/resources/rssguard.qrc b/resources/rssguard.qrc
index 677c48040..29b6e4ff5 100644
--- a/resources/rssguard.qrc
+++ b/resources/rssguard.qrc
@@ -68,7 +68,7 @@
     <file>skins/dark/html_single_message.html</file>
     <file>skins/dark/html_wrapper.html</file>
     <file>skins/dark/metadata.xml</file>
-    <file>skins/dark/theme.css</file>
+    <file>skins/dark/qt_style.qss</file>
 
     <file>skins/vergilius/html_adblocked.html</file>
     <file>skins/vergilius/html_enclosure_every.html</file>
@@ -77,7 +77,7 @@
     <file>skins/vergilius/html_wrapper.html</file>
     <file>skins/vergilius/html_style.css</file>
     <file>skins/vergilius/metadata.xml</file>
-    <file>skins/vergilius/theme.css</file>
+    <file>skins/vergilius/qt_style.qss</file>
 
     <file>skins/nudus/html_adblocked.html</file>
     <file>skins/nudus/html_enclosure_every.html</file>
@@ -85,7 +85,7 @@
     <file>skins/nudus/html_single_message.html</file>
     <file>skins/nudus/html_wrapper.html</file>
     <file>skins/nudus/metadata.xml</file>
-    <file>skins/nudus/theme.css</file>
+    <file>skins/nudus/qt_style.qss</file>
 
     <file>initial_feeds/feeds-en.opml</file>
 
diff --git a/resources/skins/dark/theme.css b/resources/skins/dark/qt_style.qss
similarity index 100%
rename from resources/skins/dark/theme.css
rename to resources/skins/dark/qt_style.qss
diff --git a/resources/skins/nudus/theme.css b/resources/skins/nudus/qt_style.qss
similarity index 100%
rename from resources/skins/nudus/theme.css
rename to resources/skins/nudus/qt_style.qss
diff --git a/resources/skins/plain/theme.css b/resources/skins/plain/qt_style.qss
similarity index 100%
rename from resources/skins/plain/theme.css
rename to resources/skins/plain/qt_style.qss
diff --git a/resources/skins/vergilius/theme.css b/resources/skins/vergilius/qt_style.qss
similarity index 100%
rename from resources/skins/vergilius/theme.css
rename to resources/skins/vergilius/qt_style.qss
diff --git a/src/librssguard/miscellaneous/skinfactory.cpp b/src/librssguard/miscellaneous/skinfactory.cpp
index 3fb863d98..3ebc56b19 100644
--- a/src/librssguard/miscellaneous/skinfactory.cpp
+++ b/src/librssguard/miscellaneous/skinfactory.cpp
@@ -171,7 +171,7 @@ Skin SkinFactory::skinInfo(const QString& skin_name, bool* ok) const {
       skin.m_enclosureMarkup = QString::fromUtf8(IOFactory::readFile(skin_folder + QL1S("html_enclosure_every.html")));
       skin.m_enclosureMarkup = skin.m_enclosureMarkup.replace(QSL(USER_DATA_PLACEHOLDER),
                                                               skin_folder_no_sep);
-      skin.m_rawData = QString::fromUtf8(IOFactory::readFile(skin_folder + QL1S("theme.css")));
+      skin.m_rawData = QString::fromUtf8(IOFactory::readFile(skin_folder + QL1S("qt_style.qss")));
       skin.m_rawData = skin.m_rawData.replace(QSL(USER_DATA_PLACEHOLDER),
                                               skin_folder_no_sep);
       skin.m_adblocked = QString::fromUtf8(IOFactory::readFile(skin_folder + QL1S("html_adblocked.html")));