WP File Manager

Name	Action
..
block.json	Edit
editor-rtl.css	Edit
editor-rtl.min.css	Edit
editor.css	Edit
editor.min.css	Edit
style-rtl.css	Edit
style-rtl.min.css	Edit
style.css	Edit
style.min.css	Edit
theme-rtl.css	Edit
theme-rtl.min.css	Edit
theme.css	Edit
theme.min.css	Edit

Editing: theme-rtl.min.css

.wp-block-video :where(figcaption){color:#555;font-size:13px;text-align:center}.is-dark-theme .wp-block-video :where(figcaption){color:#ffffffa6}.wp-block-video{margin:0 0 1em}