Hello
I modified the code to display Do Re Mi note names, basically all I did was to change the note letters with the names, so, it doesn't fix the fixed/movable scale issue, also I didn't modify the program to work with both systems, I only modified the graphics.
I used the source code for the version 0.6.4, the modified file is the Draw.cpp file, I changed the accidental offset to 16 and the code for displaying the letters of course.
Draw.cppI hope that this little modification can be of use and finally I'd like to thank the author for such a useful program.