i had found the following option at pushover homepage:
HTML/Message Styling (https://pushover.net/api)
As of version 2.3 of our device clients, messages can be formatted with HTML tags.
To enable HTML formatting, include an html parameter set to 1. The normal message content in your message parameter will then be displayed as HTML.
Due to limitations with notifications on mobile platforms, HTML tags are stripped out when displaying your message as a notification (leaving just the plain text of your message). Once the device client is opened and your message has been downloaded from our server, we display the full HTML version.
HTML tags currently supported:
<b>word</b> - display word in bold
<i>word</i> - display word in italics
<u>word</u> - display word underlined
<font color="#0000ff">word</font> - display word in blue text
<a href=“http://example.com/”>word</a> - display word as a tappable link to http://example.com/
Works the function by anyone? I can’t add the option “html” at pimatic rule… no suggestion