So I followed directions in "Adding theme settings (advanced)" but for the life of me I can't find any page with theme settings. Is theme-settings.php still a thing?
If you are creating a custom theme then yes I think that file can still be created the same way as in D7. You could take a look at the Bartik theme in core.
Easy xml sitemap doesnt seem to offer multiple sitemaps for different languages, otherwise it seems a good solution for a single sitemap but then it doesnt make sense to exclude languages at all...
The only help I can offer is related to the module Easy XML sitemap.
I do not use XML Sitemap because it's too overwhelming (IMHO) for my needs.
I apologize for any potential...
I have re-installed from a clean minimal profile.
When adding new translatable content, if it also has a menu item, the links are not synchronized and needs to be added manually...
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If you are creating a custom theme then yes I think that file can still be created the same way as in D7. You could take a look at the Bartik theme in core.