message: [vtbackend] Color: Fixes some fmtlib overrides.
diff: @@ -440,7 +440,7 @@ struct formatter<terminal::Color>
  template <typename FormatContext>
  auto format(terminal::Color value, FormatContext& ctx)
  {
  - return fmt::format_to(ctx.out(), to_string(value));
  + return fmt::format_to(ctx.out(), "{}", to_string(value));
  }
  };
  @@ -455,7 +455,7 @@ struct formatter<terminal::RGBColor>
  template <typename FormatContext>
  auto format(terminal::RGBColor value, FormatContext& ctx)
  {
  - return fmt::format_to(ctx.out(), to_string(value));
  + return fmt::format_to(ctx.out(), "{}", to_string(value));
  }
  };
  @@ -470,7 +470,7 @@ struct formatter<terminal::RGBAColor>
  template <typename FormatContext>
  auto format(terminal::RGBAColor value, FormatContext& ctx)
  {
  - return fmt::format_to(ctx.out(), to_string(value));
  + return fmt::format_to(ctx.out(), "{}", to_string(value));
  }
  };
  