Unmaintained Day Night Switcher 1.0.0 (RC 3)

Great addon!
I bought the swift theme with day and night mode.
I am a novice but with this addon I can switch the themes of my users without problem.
Very easy to install and use.
Simple and effective, I recommend

Very nice add-on, does exactly what it says. My only suggestion would to have the user's preferences dialogue be a drop-down, and let them select 'Day/Night', 'Dark', and 'Light', so that the user can choose if they want they always want the 'dark' version for example if that isn't the default outside of this add-on.

It is nice.
It would have been nice if there was a button for users to manually select.
Can you do that?