You can translate azpainter and azpainterb. This is a professional software for drawing and editing images.
Download source code from http://azsky2.html.xdomain.jp/arc/download.html#ct0. In "translations" folder you will find simple text files. Choose language that you know better and translate file's content. New file with name "tr" or "tr_TR" send to developer on [email protected] or on https://github.com/Symbian9/azpainter/issues/84
You can test your translation. In "translations" folder run:
gcc mtrconv.c -o mtrconv
./mtrconv tr tr.mtr or ./mtrconv tr_TR tr_TR.mtr
Final mtr file move to /usr/share/azpainter/tr and run azpainter.