{{ if ne .Site.Params.showAppearanceSwitcher nil }}
  {{ warnf "[CONGO] Theme parameter `showAppearanceSwitcher` has been renamed to `footer.showAppearanceSwitcher`. Please update your site configuration." }}
{{ end }}
{{ if ne .Site.Params.showScrollToTop nil }}
  {{ warnf "[CONGO] Theme parameter `showScrollToTop` has been renamed to `footer.showScrollToTop`. Please update your site configuration." }}
{{ end }}