Returns a Textual CSS string that styles the app with a named colour theme.
Pass the result to the css parameter of tui_app() or quick_app(),
or append it to your own CSS.
Usage
tui_theme(
name = c("dracula", "nord", "monokai", "solarized_dark", "solarized_light", "gruvbox",
"catppuccin", "ocean", "forest", "sunset")
)