A full-width rule under a heading reads as a divider — it separates the heading from what follows and cuts the page into bands. A rule that ends where the word ends reads as emphasis: it belongs to the title, and the section stays visually attached to its own heading. That single decision is what keeps five color marks on the page from looking like five horizontal cuts.

The rule is 4px — deliberately heavier than a hairline, so it registers as a mark rather than an underline typo — and it is the only saturated element in the document. Bullets use em dashes in the text color, dates and locations are gray, and the name is charcoal, not accent. A user switching the accent to navy, forest or bronze changes exactly five short marks and nothing else, which is why this template survives a color change better than most.

Because the color appears only at section titles, a resume with two sections gets almost no benefit — the device needs four or five headings to establish a rhythm. And in Word the underline becomes a thin full-width rule under each heading: the layout, content and hierarchy survive, but the point of the design does not. Send the PDF when the look matters.