polish code
polish code

AmiArt/treefrog-framework,treefrogframework/treefrog-framework,AmiArt/treefrog-framework,AmiArt/treefrog-framework,treefrogframework/treefrog-framework,treefrogframework/treefrog-framework,treefrogframework/treefrog-framework,treefrogframework/treefrog-framework,AmiArt/treefrog-framework,AmiArt/treefrog-framework