Theme-focused changes and filters in WordPress 5.9
A few theme-related notes are already published in the Miscellaneous Core Changes developer note, including: The comment text field is now marked as required, and some themes that have special styl…
The Difference Between WordPress Themes & Frameworks
WordPress › Explanations and examples « Theme Review Team
Theme Repository Data
Aaron Jorbin just released a script called the "WordPress Theme Directory Slurper", a command line P...