title: Can't change fontFace in Windows Terminal
body: <p>Trying out Windows Terminal customization via settings.json.  I found a profiles.json that follow the new conventions closely enough to work when pasted into settings.json, (I know it took because the theme changed).  The problem is that changes to "fontFace" are not having any effect.  I'm trying to use a nerd font for some powerline stuff, works in Powershell running in ConEmu but not in Windows Terminal.  Here is the relevant portion of settings.json:</p>
  
  <pre><code>{
      "$schema": "https://aka.ms/terminal-profiles-schema",
  
      "defaultProfile": "{574e775e-4f2a-5b96-ac1e-a2962a402336}",
  
      // You can add more global application settings here.
      // To learn more about global settings, visit https://aka.ms/terminal-global-settings
  
      // If enabled, selections are automatically copied to your clipboard.
      "copyOnSelect": false,
  
      // If enabled, formatted data is also copied to your clipboard
      "copyFormatting": false,
  
      // A profile specifies a command to execute paired with information about how it should look and feel.
      // Each one of them will appear in the 'New Tab' dropdown,
      //   and can be invoked from the commandline with `wt.exe -p xxx`
      // To learn more about profiles, visit https://aka.ms/terminal-profile-settings
      "profiles":
      {
          "defaults":
          {
              // Put settings here that you want to apply to all profiles.
              "cursorShape": "vintage",
              "fontFace": "Iosevka Nerd Font"
          },
          "list":
          [
              {
                  // Make changes here to the powershell.exe profile.
                  "guid": "{61c54bbd-c2c6-5271-96e7-009a87ff44bf}",
                  "name": "Windows PowerShell",
                  "commandline": "powershell.exe",
                  "hidden": false,
                  "fontFace": "Iosevka Nerd Font",
                  "colorScheme": "PowerShellTom",
                  "useAcrylic": true,
                  "acrylicOpacity": 0.8
              },
              { ...
  </code></pre>
  
  <p>I get the same behavior in Windows Terminal Preview, which is supposed to be the least "bleeding edge" version.</p>
  
  <p>Even trying non-nerd fonts for "fontFace" has no effect, however, "fontSize" will work. </p>