Overwriting templatetags

[bastien34]

Hi,
Scheduletags tags return sometimes hardcoded html like:
return mark_safe( '<a href="%s%s"><span class="glyphicon glyphicon-circle-arrow-left"></span></a>' % ( reverse(f"{target}", kwargs={"calendar_slug": slug}), querystring_for_date(period.prev().start), ) )
What do you advise to overwrite it? Making a kind of NewScheduletags lib is the first idea that came to me? How would you integrate it?

[robertpro]

I think this needs to be solved by adding another html template passing only the url, another solution is copy & paste the template tag and fix it locally.