Wordpress custom styles

Block Name	Block Type	Supports `register_block_style()`?	Notes / Quirks
`core/paragraph`	Text	✅ Yes	Works normally
`core/heading`	Text	✅ Yes	All heading levels
`core/list`	Text	✅ Yes
`core/quote`	Text	✅ Yes
`core/pullquote`	Text	✅ Yes
`core/code`	Text	✅ Yes
`core/preformatted`	Text	✅ Yes
`core/verse`	Text	✅ Yes
`core/image`	Media	✅ Yes	e.g. “Rounded” style
`core/gallery`	Media	✅ Yes
`core/media-text`	Media / Layout	✅ Yes
`core/cover`	Media / Layout	✅ Yes
`core/table`	Layout	✅ Yes
`core/columns`	Layout	✅ Yes
`core/column`	Layout	✅ Yes
`core/group`	Layout	✅ Yes
`core/separator`	Layout	✅ Yes
`core/buttons`	Interactive	⚠️ Sometimes	Register on both `core/buttons` and `core/button`. Theme variations may override.
`core/button`	Interactive	⚠️ Sometimes	Works if registered, but some themes only show Fill/Outline by default.
`core/navigation`	Interactive	⚠️ Limited	Better to style via `theme.json`.
`core/navigation-link`	Interactive	⚠️ Limited	Same as above.
`core/embed`	Embeds	✅ Yes
`core/latest-posts`	Query	❌ No	Style panel doesn’t appear.
`core/latest-comments`	Query	❌ No
`core/archives`	Query	❌ No
`core/categories`	Query	❌ No
`core/tag-cloud`	Query	❌ No
`core/calendar`	Query	❌ No
`core/rss`	Query	❌ No
`core/spacer`	Layout utility	❌ No	No styles, only height control.
`core/separator`	Layout utility	✅ Yes	Already has built-in “Wide / Dots”.
`core/html`	Utility	❌ No	Custom HTML, no style panel.
`core/shortcode`	Utility	❌ No	Deprecated use case.
`core/widget-area`	Legacy	❌ No	Widget-based, legacy.
`core/site-logo`	Site	⚠️ Limited	Mostly theme.json driven.
`core/site-title`	Site	⚠️ Limited
`core/site-tagline`	Site	⚠️ Limited
`core/post-title`	Post/template	⚠️ Limited	Often theme.json instead.
`core/post-content`	Post/template	❌ No	Doesn’t support styles directly.
`core/query`	Query loop	⚠️ Limited	Use block variations or theme.json.