Theming Views in Drupal 8 with custom templates
To use a custom template for a view in Drupal 8 use this theme naming pattern:
views-view--[view name]--[view display].html.twig
So for Taxonomy view page:
Taxonomy view template example
Drupal 8 ships with a Taxonomy View. It's a fairly simple view implementing a Contextual Filter to display all content associated with a particular term id.
For the path, mydomain.com/taxonomy/term/5 the view will grab the id (5) from the current path and query for nodes tagged with it.
But by default, this (and every other view) is themed through view-views.html.twig. That's not what I want. Like most things in Drupal land, you can render this individual view through a custom template.
How do I name a view template in Drupal 8?
I checked Twig debug in my browser inspector looking for the exact naming convention for view templates. That always lists template suggestions. Not this time.
I checked the Taxonomy view config (in Drupal 7 theme hook suggestions were listed there). Theming suggestions have been removed from Views UI in Drupal 8.
Time to read documentation!! :(
Drupal Views Template Documentation
All/most of the resources you need for view template naming you can find in the Views Template Documentation for Drupal 8.
Choose tha naming pattern that fits your purpose. In our example I want to template the main view display. There are also options for view format style and view row style.
Now, create the Twig template file named precisely for your custom view.
If I was theming the Taxonomy block, it would be:
Paste in the related Twig markup from the default Drupal template views-view.html.twig :
You can start from nothing, but it's a lot easier to have the default code and modify, rearrange or delete as necessary.
Make your code changes
Clear cache and you're all done.