border-left 4px solid purple + radius
border-left 4px + radius
border-left 3px, rounded away from the stripe
border-left 4px solid var(--accent)
style attribute, issue #359 case (a); width 7px keeps the snippet unique
border-top 4px on a square box
neutral named color
light neutral named color
neutral side border
too thin to qualify
all four sides, not a stripe