Where is the Perspective horizontal menu getting its selected left side border color from?

Transistor · January 31, 2026, 11:58pm

Try this in your Advanced Stylesheet:

div.ia_horizontalMenuComponent__item__leftItem--active
{
    border-left: 8px solid var(--success);
}

This is based on Adding a style to an icon using the Horizontal Menu Component In Perspective - #2 by cmallonee.

Try this too:

div.ia_horizontalMenuComponent__item__leftItem--active
{
    border-left: 44px solid var(--success);
    border-top: 22px solid #ffffff00;
    border-bottom: 22px solid #ffffff00;
}