diff --git a/src/plugins/texteditor/fontsettings.cpp b/src/plugins/texteditor/fontsettings.cpp
index b1db84be748..e1ebc812ee3 100644
--- a/src/plugins/texteditor/fontsettings.cpp
+++ b/src/plugins/texteditor/fontsettings.cpp
@@ -229,17 +229,21 @@ void FontSettings::addMixinStyle(QTextCharFormat &textCharFormat,
         const Format &format = m_scheme.formatFor(mixinStyle);
 
         if (textCharFormat.hasProperty(QTextFormat::ForegroundBrush)) {
-            textCharFormat.setForeground(mixBrush(textCharFormat.foreground(),
-                                                  format.relativeForegroundSaturation(),
-                                                  format.relativeForegroundLightness()));
+            if (format.foreground().isValid())
+                textCharFormat.setForeground(format.foreground());
+            else
+                textCharFormat.setForeground(mixBrush(textCharFormat.foreground(),
+                                                      format.relativeForegroundSaturation(),
+                                                      format.relativeForegroundLightness()));
         }
-
         if (textCharFormat.hasProperty(QTextFormat::BackgroundBrush)) {
-            textCharFormat.setBackground(mixBrush(textCharFormat.background(),
-                                                  format.relativeBackgroundSaturation(),
-                                                  format.relativeBackgroundLightness()));
+            if (format.background().isValid())
+                textCharFormat.setBackground(format.background());
+            else
+                textCharFormat.setBackground(mixBrush(textCharFormat.background(),
+                                                      format.relativeBackgroundSaturation(),
+                                                      format.relativeBackgroundLightness()));
         }
-
         if (!textCharFormat.fontItalic())
             textCharFormat.setFontItalic(format.italic());