diff --git a/share/qtcreator/themes/dark.creatortheme b/share/qtcreator/themes/dark.creatortheme
index 7593a2b3875..4f92228aa36 100644
--- a/share/qtcreator/themes/dark.creatortheme
+++ b/share/qtcreator/themes/dark.creatortheme
@@ -352,6 +352,7 @@ PaletteWindowTextDisabled=textDisabled
 PaletteBaseDisabled=backgroundColorDisabled
 PaletteTextDisabled=textDisabled
 PaletteMid=ffa0a0a0
+PalettePlaceholderText=ff8d8d8d
 
 QmlDesigner_BackgroundColor=qmlDesignerButtonColor
 QmlDesigner_HighlightColor=ff46a2da
diff --git a/share/qtcreator/themes/design.creatortheme b/share/qtcreator/themes/design.creatortheme
index b48b3720988..daffe924a6a 100644
--- a/share/qtcreator/themes/design.creatortheme
+++ b/share/qtcreator/themes/design.creatortheme
@@ -478,6 +478,7 @@ PaletteWindowTextDisabled=textDisabled
 PaletteBaseDisabled=backgroundColorDisabled
 PaletteTextDisabled=textDisabled
 PaletteMid=ffafafaf
+PalettePlaceholderText=ff808081
 
 [Flags]
 ComboBoxDrawTextShadow=false
diff --git a/share/qtcreator/themes/flat-dark.creatortheme b/share/qtcreator/themes/flat-dark.creatortheme
index aa0e8d2fdfb..6265003f1df 100644
--- a/share/qtcreator/themes/flat-dark.creatortheme
+++ b/share/qtcreator/themes/flat-dark.creatortheme
@@ -370,6 +370,7 @@ PaletteWindowTextDisabled=textDisabled
 PaletteBaseDisabled=backgroundColorDisabled
 PaletteTextDisabled=textDisabled
 PaletteMid=ffa0a0a0
+PalettePlaceholderText=ff7f7f80
 
 [Flags]
 ComboBoxDrawTextShadow=false
diff --git a/src/libs/utils/theme/theme.cpp b/src/libs/utils/theme/theme.cpp
index 2b9b12ebc37..e45662012e5 100644
--- a/src/libs/utils/theme/theme.cpp
+++ b/src/libs/utils/theme/theme.cpp
@@ -193,7 +193,7 @@ void Theme::readSettings(QSettings &settings)
         for (int i = 0, total = e.keyCount(); i < total; ++i) {
             const QString key = QLatin1String(e.key(i));
             if (!settings.contains(key)) {
-                if (i < PaletteWindow || i > PaletteShadowDisabled)
+                if (i < PaletteWindow || i > PalettePlaceholderTextDisabled)
                     qWarning("Theme \"%s\" misses color setting for key \"%s\".",
                              qPrintable(d->fileName), qPrintable(key));
                 continue;
@@ -325,7 +325,9 @@ QPalette Theme::palette() const
         {PaletteMid,                       QPalette::Mid,              QPalette::All,      false},
         {PaletteMidDisabled,               QPalette::Mid,              QPalette::Disabled, false},
         {PaletteShadow,                    QPalette::Shadow,           QPalette::All,      false},
-        {PaletteShadowDisabled,            QPalette::Shadow,           QPalette::Disabled, false}
+        {PaletteShadowDisabled,            QPalette::Shadow,           QPalette::Disabled, false},
+        {PalettePlaceholderText,           QPalette::PlaceholderText,  QPalette::All,      false},
+        {PalettePlaceholderTextDisabled,   QPalette::PlaceholderText,  QPalette::Disabled, false},
     };
 
     for (auto entry: mapping) {
diff --git a/src/libs/utils/theme/theme.h b/src/libs/utils/theme/theme.h
index 66d2d291aba..a4fd112786d 100644
--- a/src/libs/utils/theme/theme.h
+++ b/src/libs/utils/theme/theme.h
@@ -163,6 +163,9 @@ public:
         PaletteMidDisabled,
         PaletteShadowDisabled,
 
+        PalettePlaceholderText,
+        PalettePlaceholderTextDisabled,
+
         /* Icons */
 
         IconsBaseColor,