Does Ghost make multiple image sizes?

[spendlove]

I saw a video that briefly described how Ghost takes a huge photo file and optimizes it for the web, which is good. But what is it doing behind the scenes? Is it making multiple copies of the same image, so it can serve the most appropriate size based on which type of device a user is using?

Thank you.

[jannis]

@spendlove

Is it making multiple copies of the same image, so it can serve the most appropriate size based on which type of device a user is using?

Yes, that is what’s happening.

The different sizes are controlled on a theme level:

How to use responsive images in Ghost themes