This is a customizable template, requested by User:Cassie Schebel, for transgender people to state how long they have been on transgender hormone therapy. The template has 3 versions as follows:
The first parameter is used to specify the version of the template: 0 (default) provides a gender-neutral version, 1 provides a version for trans men, 2 provides a version for trans women.
date is used to provide the date that the hormone therapy began. For example, {{User:PerfectSoundWhatever/UBX/HRT|1|date=4 September 2020}} produces:
border-c, border-s, id-c, and id-s expose these parameters of Template:userbox, allowing you to override the default values of these if you don't like the default values declared in this template.
size allows you to override the size of the trans flag image in this template. Default is 80.
HRT-c, if given a value, allows the default colour of the HRT link in the userbox to be overwritten.
Example of these in use:
{{User:PerfectSoundWhatever/UBX/HRT|0|date=4 September 2020|size=90|border-c=#999999|border-s=1px|id-c=#DDDDDD|id-s=14|HRT-c=#C71585}}