firefox sidebar chatbox icon

highlights.svg

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<svg xmlns="http://www.w3.org/2000/svg" fill="context-fill" fill-opacity="context-fill-opacity" viewBox="0 0 16 16" ><path d="m1.444 1.151.182-.849c.086-.402.66-.402.747 0l.182.849a.381.381 0 0 0 .293.293l.849.182c.402.086.402.66 0 .747l-.848.183a.38.38 0 0 0-.293.293l-.183.849c-.086.402-.66.402-.747 0l-.182-.849a.38.38 0 0 0-.293-.293l-.849-.183c-.402-.086-.402-.66 0-.747l.849-.182a.38.38 0 0 0 .293-.293zm0 12 .182-.849c.086-.402.66-.402.747 0l.182.849a.381.381 0 0 0 .293.293l.849.182c.402.086.402.66 0 .747l-.849.182a.381.381 0 0 0-.293.293l-.182.849c-.086.402-.66.402-.747 0l-.182-.849a.381.381 0 0 0-.293-.293l-.849-.182c-.402-.086-.402-.66 0-.747l.849-.182a.38.38 0 0 0 .293-.293z"/><path fill-rule="evenodd" d="M10.264 1.86C9.81.713 8.189.713 7.736 1.86L6.48 5.046a.775.775 0 0 1-.435.435L2.86 6.736c-1.147.453-1.147 2.075 0 2.528l3.186 1.256a.775.775 0 0 1 .435.435l1.255 3.185c.453 1.147 2.075 1.147 2.528 0l1.256-3.186a.775.775 0 0 1 .435-.434l3.185-1.256c1.147-.453 1.147-2.075 0-2.528L11.954 5.48a.775.775 0 0 1-.434-.435L10.264 1.86zM7.876 5.596 9 2.744l1.125 2.853a2.275 2.275 0 0 0 1.279 1.279L14.256 8l-2.853 1.125a2.275 2.275 0 0 0-1.279 1.279L9 13.256l-1.125-2.853a2.275 2.275 0 0 0-1.279-1.279L3.744 8l2.853-1.125a2.275 2.275 0 0 0 1.279-1.279z" clip-rule="evenodd" /></svg>

svg path {
  fill: var(--theme-selection-color);
}

source: https://github.com/mozilla-firefox/firefox/blob/4e8871487a9f97992e00d5c8105ef1d8cf3c88f3/toolkit/themes/shared/icons/highlights.svg?short_path=d1f6955