How to disable automatic updates to preferences?

[FeelUs]

I edit preferences (commented something, changed something places).
When I, for example, change font size or theme, sublime text itself edit my preferences.
How to disable it?
I want my preferences edited only by me.

[OdatNurd]

The commands you mention can only work by modifying the preferences file because only the preferences file controls things like the font size, color scheme or theme. As such the only way to avoid the problem you’re referring to is to manually make those changes instead of using the menu items.

That said a third party package might also try to edit your settings, so you might still encounter this even if you’re careful.

[abathur]

I’m not sure what your objective is, but a decent compromise may be keeping your preferences under version control. This makes it easy for you to see what has changed and readily discard changes.