GMail Label Styler
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Set GMail message viewer and editor styles by label. e.g. mailing list messages that are best viewed with a monospace font.

Note: updated for the latest GMail as of 2020-05-11 Enables user to apply CSS to GMail message viewer and editor for selected labels only. Created for mailing list message viewing and editing that works best with monospace fonts but useful in many situations. Configuring CSS properties and one or more label names. Can be used to increase font size in GMail editor without causing the email to be sent in the larger font or even rich text (HTML) format. Only affects your view of the message in the editor, not the recipient.

4.5 out of 54 ratings

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Paul WhiteMar 11, 2020

The idea is great, but unfortunately not working on new Gmail interface. I make extensive use of labels to track 100s of mails from system health checks. Hopefully someone finds a work around. Paul

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David BrodbeckJan 18, 2018

Really basic, but also really handy. I'm a system administrator and get a lot of reports with formatted ASCII tables, etc. in my email. This lets me make them properly readable again.


  • Version
  • Updated
    May 11, 2020
  • Offered by
    Mike Scalora
  • Size
  • Languages
    English (United States)
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has not provided any information about the collection or usage of your data.


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