removed double .png postfix #785
removed double .png postfix #785

MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta