There is CSS that you could try though not exactly what you’re hoping for. eg.
<a class="badge-wrapper box"
href="/community/c/python-perl-and-golang/python">
<span class="badge-category-parent-bg"
style="background-color: #A45BC7;"></span>
<span class="badge-category-bg"
style="background-color: #1a69ca;"></span>
<span style="color: #FFFFFF;"
data-drop-close="true"
class="badge-category clear-badge" title="Discussion about the popular interpreted language for web, scientific and mathematical programming, based on the "One Obvious Way To Do It" philosophy.">Python</span>
</a>
If you change the “5px” values for badge-category-bg from
left: 5px;
width: calc(100% - 5px);
to 10 px you get a side stripe twice as wide