diff --git a/buildozer/minimal.txt b/buildozer/minimal.txt
index f0fed3a9..2a78e394 100644
--- a/buildozer/minimal.txt
+++ b/buildozer/minimal.txt
@@ -7,6 +7,7 @@ cardset-dojouji-3x3
 cardset-dondorf
 cardset-eternal-dragon-10x10
 cardset-gnome-mahjongg-1
+cardset-gpl
 cardset-hanafuda-200-years
 cardset-hexadeck
 cardset-hofamterspiel-9x9
@@ -30,3 +31,4 @@ cardset-tuxedo
 cardset-uni-mahjongg
 cardset-victoria-falls-5x5
 cardset-vienna-2k
+cardset-z_minimal
diff --git a/buildozer/mkcards b/buildozer/mkcards
index 163dd182..7eaeac09 100755
--- a/buildozer/mkcards
+++ b/buildozer/mkcards
@@ -2,7 +2,7 @@
 #set -eux
 
 #loadmode="forge"
-loadmode=""
+loadmode=" "
 
 rm -rf cardsets
 
@@ -46,7 +46,7 @@ else
 		pushd repo
 		git init
 		git remote add -t master origin https://github.com/shlomif/PySolFC-Cardsets.git
-		git fetch --depth 1 origin b153255935a5376da6151b55bc8044f1131c7950
+		git fetch --depth 1 origin 9b63a583dc3e770fa9bf8f2378c37a064aa4969c
 		git checkout -q FETCH_HEAD
 		popd
 
diff --git a/buildozer/resizecards b/buildozer/resizecards
index 719b09c8..c7911dd6 100755
--- a/buildozer/resizecards
+++ b/buildozer/resizecards
@@ -7,8 +7,8 @@ import math
 
 carddir = ""
 filename = ""
-maxw = 120
-maxh = 180
+maxw = 100
+maxh = 150
 
 # arguments:
 # 1: cardset directory
diff --git a/pysollib/kivy/LApp.py b/pysollib/kivy/LApp.py
index 10bab460..2a7f67c6 100644
--- a/pysollib/kivy/LApp.py
+++ b/pysollib/kivy/LApp.py
@@ -1854,8 +1854,8 @@ class LApp(App):
                 self.rect.pos = self.pos
                 self.rect.size = self.size
 
-        self.startLabel = MyLabel(text="PySolFC", color=[0.9,0.9,0.9,1]) # noqa
-        self.baseWindow.add_widget(self.startLabel)
+        #self.startLabel = MyLabel(text="PySolFC", color=[0.9,0.9,0.9,1]) # noqa
+        #self.baseWindow.add_widget(self.startLabel)
 
         return self.baseWindow
 
@@ -1887,11 +1887,10 @@ class LApp(App):
         logging.info("LApp: app_start processed, returned to kivy mainloop")
 
         self.baseWindow.add_widget(self.mainWindow,index=1) # noqa
-        anim = Animation(opacity=0,duration=0.5) # noqa
-        anim.start(self.startLabel)
-        Clock.schedule_once(lambda dt:
-            self.baseWindow.remove_widget(self.startLabel),1.0)  # noqa
-        Clock.schedule_once(lambda dt: set_fullscreen(True),2.0) # noqa
+        self.baseWindow.opacity = 0
+        anim = Animation(opacity=1,duration=0.7) # noqa
+        Clock.schedule_once(lambda dt: anim.start(self.baseWindow),0.3) # noqa
+        Clock.schedule_once(lambda dt: set_fullscreen(True),0.0) # noqa
 
     def on_start(self):
         logging.info("LApp: on_start")
@@ -2040,8 +2039,12 @@ class LApp(App):
         # einwandfrei. Daher versuchen wir ... um den graphik context
         # wieder zu aktivieren/auszurichten:
 
-        Clock.schedule_once(lambda dt: self.mainWindow.rebuildContainer(), 1.0)
-        Clock.schedule_once(lambda dt: set_fullscreen(True),2.0) # noqa
+        # gemäss einer neueren Antwort auf kivy issue 3671 gehört auch
+        # update-viewport zu den nützlichen massnahmen.
+
+        Clock.schedule_once(lambda dt: Window.update_viewport(),0.0) # noqa
+        Clock.schedule_once(lambda dt: self.mainWindow.rebuildContainer(), 0.5)
+        Clock.schedule_once(lambda dt: set_fullscreen(True),1.0) # noqa
 
         # Pause modus abschalten nach resume:
         if app.game.pause: