Used broadly like the English word: the most important or memorable part of an event, story, or visual presentation; also used in makeup and hair coloring.
The highlight of the trip was the view from the top of Mt. Fuji.
プレゼンのハイライトを最初に説明してください。
Please explain the highlights of the presentation first.
I watched the highlights of the game on TV.
I watched the baseball highlights after getting home.
I had highlights put in my hair at the salon.
The concert finally reached its highlight.
ハイライト is a neutral loanword for a featured highlight, whereas 圧巻 carries a stronger sense of overwhelming impressiveness.
ハイライト refers to a highlighted or emphasized point, often in content or visuals, while アクセント specifically means a color or design element that stands out against its surroundings.