Will theme.json replace all add_theme_supports()?

Question: Is there (or will there be) add_theme_support() equivalents to everything in theme.json?

Answer: It may do in the future. In the mean time, you still need to add some capabilities using add_theme_support() in functions.php.


Block Editor Handbook: Theme Support

WordPress version: 5.7.2

Gutenberg version: 10.8.0

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