message: Better welcome screen header typography on Mac
  Choose appropriate font (i.e. SF Display, not SF Text) for the large
  text automatically. Simplify the code on other platforms as well.
diff: @@ -34,8 +34,6 @@ class WelcomeScreenBase : public wxPanel
  {
  protected:
  WelcomeScreenBase(wxWindow *parent);
  -
  - wxFont m_fntHeader;
  };
  /// Content view for initially opened Poedit, without a file
  