After running the pagespeed analysis on my site, I have noticed that the theme does not add the explicit width and height parameter to the images.
As you can see in the attached screenshot, I’ve disabled the theme and added a default theme. The width and height parameter are present. But when I put back the Gillion theme, they are not there anymore.
Could you please provide with a code I can add in the functions file to add them back?
I have added all the relevant links in the private info section.
I hope you are well today and thank you for your question.
It is not added to the featured image as it does not require but all other images contain it.
To change this, you have to develop custom code in the child theme of the Gillion theme.
Developing custom code for custom functionality is beyond the scope of support that we provide here. Please see https://themeforest.net/item/gillion-multiconcept-blogmagazine-theme/19470306/support
If you are not a developer then you can consider hiring a developer to develop it for you. You can hire a developer from any freelance site. Shufflehound recommends the developer https://www.upwork.com/freelancers/~011652ffec8865c6d5