workaround to fix broken boost variant, changed minSdkVersion

.gitignore

@@ -74,4 +74,5 @@ iOSInjectionProject/
 /windows/DoubleHitBalls-win/DoubleHitBalls-win/progress.txt
 /windows/DoubleHitBalls-win/DoubleHitBalls-win/resources
 *.db
-*.opendb
+*.opendb
+/proj.android-studio/app/release/

game/main_code.cpp

@@ -626,8 +626,8 @@ void TMyApplication::SetupGalaxyUi(size_t levelStar)
 			{
 
 				currentLevelButton->setVisibility(true);
-								
-				currentLevelButton->setBackground(levelName + "_prerender");
+
+                currentLevelButton->setBackground(ResourceManager->newGuiManager.layoutBackgroundFromConfigValue(levelName + "_prerender"));
 				
 				currentLevelButton->onMouseUpSignal.connect(
 					[this, modal_background, levelStar, levelIndex](Vector2f v, int i) {

proj.android-studio/app/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion "28.0.0"
     defaultConfig {
         applicationId "fishrungames.DoubleHitBalls"
-        minSdkVersion 15
+        minSdkVersion 24
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"