Fix icon color, rebuild icons

android/app/src/main/res/mipmap-hdpi/ic_launcher.png

android/app/src/main/res/mipmap-mdpi/ic_launcher.png

android/app/src/main/res/mipmap-xhdpi/ic_launcher.png

android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png

android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png

assets/icons/button_restart.png

assets/icons/empty.png

assets/icons/game_win.png

assets/skins/default_tile_black.png

assets/skins/default_tile_empty.png

assets/skins/default_tile_white.png

fastlane/metadata/android/en-US/images/icon.png

icons/button_restart.svg

icons/icon.svg