Blog Featured Image Size

carlysmith · September 2015

Hi,

I have created a child theme and I would like to increase the height of the featured image at the top of the blog post page. The top and bottom of my image are being cropped off.

I have read previous discussions and you have mentioned editing the image size in the theme-functions.php, but if I change this, will my changes be lost with an update?

When I have looked at image size in theme-functions, I cannot see the dimensions that I see when I inspect element in Google Chrome. So I am not sure where they are coming from?

Thank you!

Albert · September 2015

Hi,

blog featured image size is set under functions/theme-functions.php file where add_image_size() functions are. For featured image on single post page is responsible below line:

add_image_size( 'blog-single',         1200, 480,  true  );     // blog - single

carlysmith · September 2015

I have changed this and nothing has happened.

I have also created a child-theme, so if this does work - will my changes not be lost in the next update?

Albert · September 2015

After this change, you must upload all images again or you must use https://pl.wordpress.org/plugins/force-regenerate-thumbnails/ to re-create all images.

carlysmith · September 2015

This has worked, but I have a child theme. When betheme updates, will my changes to functions > theme-functions.php be lost?

When I create functions > theme-functions.php in my child theme, it does not work.

Albert · September 2015

Yes, this file will be overwritten while update. Please take a look at http://forum.muffingroup.com/betheme/discussion/3128/theme-shortcodes-php-doesn-t-work-in-betheme-child where we explained how child theme and functions works.

carlysmith · September 2015

I have looked at this and still do not understand. I do not need to use theme-shortcodes, I need theme-functions.

What code do I need to include in my childtheme/functions.php to change the image size in theme-functions.php?

Albert · September 2015

You must move whole functions from theme-functions.php into functions.php file. But please notice that we do not offer file customizations so if you don't know how to do this, you must contact with your site developer.

hfindikoglu · August 2020

could you please open this up with step by step? i should backup my themefunctions php before ?

Pablo · August 2020

hfindikoglu,

This topic is really old and a lot functionalities changed, including the child theme which is really important when you want to change anything in the code.

Child Theme prevents losing your changes while updating the theme, so please, use the Child Theme.

More about using the child theme and modifications of the theme are available to see here:

https://developer.wordpress.org/themes/advanced-topics/child-themes/

thanks

Blog Featured Image Size

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