chromium/content/test/data/accessibility/mac/attributed-string/mark-expected.txt

tr_mark={anchor: {:2, 0, down}, focus: {:2, 9, down}}
mark.accessibilityAttributeValue(AXAttributedStringForTextMarkerRange, tr_mark)={Mark Text: {AXFont: {AXFontSize: 16}, AXForegroundColor: 'CGColor(0.00, 0.00, 0.00, 1.00)', AXHighlight: 1}}