PHP definitions are ruled in filetypes.html, because inside filetypes.php is almost nothing but record to see filetypes.html.
OK. I went to filetypes.html. There are groups of definitions which start from html_, sgml_, php_, jscript_, python_
I changed the settings which start from php_ and indeed my php scripts now look different.
Then I changed the settings which start from python_ but nothing changed in my python scripts. And then I realized that maybe there is another file for python, and indeed the definitions for python are in filetypes.python. And changes there reflect my highlighting of python script. I also must say that there is no record in filetypes.python to go to filetypes.html. So, it is like independent file for settings.
1) Why there is a group of settings python_ in filetypes.html, if they do nothing?
2) Why there are groups of settings for different languages in one file? It confuses a lot.