/usr/lib/mime/packages/latexdraw is in latexdraw 3.3.5+ds1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | application/x-latexdraw-project; latexdraw %s; description="LaTeXDraw project"; nametemplate=%s.ldp; test=test -n "$DISPLAY" ; edit=latexdraw %s; compose=latexdraw '%s'
image/svg+xml; latexdraw '%s'; description="Scalable Vector Graphics"; nametemplate=%s.svg; test=test -n "$DISPLAY"; edit=latexdraw '%s'; compose=latexdraw '%s'
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