GMail Label Styler
Set GMail message viewer and editor styles by label. e.g. mailing list messages that are best viewed with a monospace font.
What is GMail Label Styler?
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Summary
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.
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Safety
Risk impact
GMail Label Styler may not be safe to use and it requires some risky permissions. Exercise caution when installing this extension. Review carefully before installing.
Risk likelihood
GMail Label Styler has earned a fairly good reputation and likely can be trusted.
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