Method handleSubnavKey

internal/tui/tui.go:330–338

(msg tea.KeyPressMsg)

		return m, nil

	case ctrlCResetMsg:
		m.ctrlCOnce = false
		m.updateHelpBindings()
		return m, nil

	case tea.BackgroundColorMsg:
		// The terminal knows its background; a theme file that states a mode knows better.
		if !m.theme.HasMode && m.theme.Dark != msg.IsDark() {
			theme := m.theme
			theme.Dark = msg.IsDark()
			m.restyle(theme)
		}