{% set icons = uniqueIcons %} {# Don't include variants (...-inverse) #}
{% set rows = 6 %}
{% set n = icons|length %}
{% set nPerRow = (n / rows) | round(0, "ceil") %}
{% set paddingPx = 5 %}
{% set widthPx = 888 %} {# Using GitHub's Readme width #}
{% set spacingPx = 2 * paddingPx %}
{% set totalSpacePx = spacingPx * (nPerRow - 1) %}
{% set iconWidthPx = (widthPx - totalSpacePx) / nPerRow %}
{% for id in icons|keys|sort %}
{% endfor %}