Thanks for sending over the PR, @dwrusse!! Would you mind if I made some updates to this? Here's what I have in mind so that things flow with the rest of the functions:

• Change function name to Update-GSGmailLabel since it's using an Update() method
  • This could really go either way, but the general use within this module
• Adjust parameter casing where needed from camelCase to PascalCase
  • To follow both the style guides for PowerShell and the same style as the rest of the module
• Move $SourceObject within the function's blocks or let it purely accept pipeline input of Label objects
  • This may be useful for another parameter set when piping in the output of Get-GSGmailLabel, but having another function as the default can get a bit messy
• Adjust function to use the Patch() method instead of Update()
  • Since the end goal (IMO) would be to update just the portions of the Label that you need, we can use this to eliminate an API call to get the Label object before we update it by using Patch() to only target the segments we want to update, then build our $body properties dynamically based on that.

I don't want to step on your toes and greatly appreciate you sending this over!! Let me know your feedback on it and let's use this to open a discussion up on things 😄

Thanks for reviewing @scrthq . All of your suggestions make sense and I agree with your reasoning, so no objections here. I can make the updates myself tomorrow if you'd like.

I've also added the Set-GSGmailMessageLabel function if you'd like to include it in this version.

Thanks @dwrusse! I'm actually almost done with the updates on my end, working off your forked branch now (this PR was actually good timing since I was just hopping on my dev env 😄). Wrapping in Color update support as well for full coverage of the available update fields

Thanks for adding in the Set-GSGmailMessageLabel function as well!! I'll check it out next! 😄