tui.style.sgr
tui.style.sgr ID [STATE]
Resolves the style of a widget or pane into variables, without a subshell.
Sets: TUI_SGR (escape prefix), TUI_FG, TUI_BG. TUI_RESET always holds \e[0m.
Example
tui.style.sgr log title
tui.output_append log "${TUI_SGR}== section ==${TUI_RESET}"
