Customize emails templates / style

Hello, how i can update emails style ? background for ex.
I am not talking about texts

Hi

Try to look at the file components/com_osmembership/view/emailtemplates/tmpl/container.php and make the change you want

Once the change is done, please move the modified file to template override so that the change won't be lost when you update to future releases of the extension

Regards,

Tuan

Awesome thanks!
What i should do exactly for template overide please ?

Move that modified file to templates/template_name/html/com_osmembership/emailtemplates folder when the change is done

Regards,

Tuan