I am fairly new to WordPress and run a few sites. Usually I make a child theme so I can edit the css and, when necessary, even the php. On one site, I am using Adventure Journal Theme. In the style.css there is the following instruction:
Do not edit this file. If you need to make changes to this theme, create a new stylesheet in the wp-content folder then go to the 'WordPress Admin > Settings > Adventure Journal' and add your new stylesheet under the 'Custom Stylesheet' section. This will prevent your changes from being overwritten when new versions of this theme is released.
That would be cool to just be able to add a custom style sheet without actually making a new child theme. But I cannot figure out where the author means for me to go. In the c-panel the only place I actually see Adventure Journal listed is in wp-content. And I see no path like he describes above. And if I put the new css file in the wp-admin folder it does not a show up in the site's dashboard editor. Nor do I see anyway to add it on the Dashboard>Settings.