diff --git a/src/blackgui/blackgui.pro b/src/blackgui/blackgui.pro
index 5e4d1f4cb..593d270e9 100644
--- a/src/blackgui/blackgui.pro
+++ b/src/blackgui/blackgui.pro
@@ -53,8 +53,23 @@ RESOURCES +=
 DESTDIR = $$DestRoot/lib
 DLLDESTDIR = $$DestRoot/bin
 
-OTHER_FILES += ./share/qss/*.qss ./share/qss/*.css ./share/qss/*.ini *.ico *.rc
-COPY_FILES += $$PWD/share/qss/*
+QSS_FONT_FAMILY = "Arial"
+QSS_FONT_SIZE = "8"
+QSS_FONT_STYLE = "normal"
+QSS_FONT_WEIGHT = "bold"
+
+macx {
+    QSS_FONT_SIZE = "12"
+    QSS_FONT_WEIGHT = "normal"
+}
+
+fontsqss.input = share/qss/fonts.qss.in
+fontsqss.output = $$DestRoot/share/qss/fonts.qss
+QMAKE_SUBSTITUTES += fontsqss
+
+OTHER_FILES += ./share/qss/*.qss ./share/qss/*.qss.in ./share/qss/*.css
+COPY_FILES += $$PWD/share/qss/*.qss
+COPY_FILES += $$PWD/share/qss/*.css
 
 win32 {
     dlltarget.path = $$PREFIX/bin
diff --git a/src/blackgui/share/qss/fonts.qss b/src/blackgui/share/qss/fonts.qss
deleted file mode 100644
index 3a6ac6603..000000000
--- a/src/blackgui/share/qss/fonts.qss
+++ /dev/null
@@ -1,7 +0,0 @@
-QWidget {
-    color: white;
-    font-family: "Arial";
-    font-size: 8pt;
-    font-style: normal;
-    font-weight: bold;
-}
diff --git a/src/blackgui/share/qss/fonts.qss.in b/src/blackgui/share/qss/fonts.qss.in
new file mode 100644
index 000000000..24994238d
--- /dev/null
+++ b/src/blackgui/share/qss/fonts.qss.in
@@ -0,0 +1,7 @@
+QWidget {
+    color: white;
+    font-family: $$QSS_FONT_FAMILY;
+    font-size: $$QSS_FONT_SIZE pt;
+    font-style: $$QSS_FONT_STYLE;
+    font-weight: $$QSS_FONT_WEIGHT;
+}