Filter for post_thumbnail: link to small src and add data-attribute
112629
How to replace the_post_thumbnail template tag and show the first inside the post image instead
145197
Limit the post for differents custom post type in the same wp_query
17896
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
134146
Change html structure of all img tags in Wordpress
58335
Link a img id="logo"
154331
Post source link plugin - small modification
156755
get_post_gallery with Gutenberg
98354
Adding magic link for Meta Stack Overflow?
13625
Only get_posts of certain post formats
6057
What's the recommended syntax for an image with a link?
148075
Automatically resize uploaded images
72627
remove or update add_image_size
27943
Can a  element's href attribute be relative?
133313
Thumbnail (featured image) of next and previous post is not being properly displayed!
73627
Changing pemalink structure to /%post_id%/%postname%/
59524
Help resizing posted images
89098
Insert a full page image