<div dir="ltr"><div>Did you add it to the Makefile in that subdirectory, it should be like this one:<br><a href="https://github.com/sugarlabs/sugar-toolkit-gtk3/blob/master/src/sugar3/graphics/Makefile.am">https://github.com/sugarlabs/sugar-toolkit-gtk3/blob/master/src/sugar3/graphics/Makefile.am</a><br><br></div>Remember you will have to close and reopen sugar-build to notice the changes.<br></div>