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Start at 11:00 -- 5 minutes.
Plan:
Discuss this text; it does not yet explain the accessibility feature, why it matters for users, and why the technique for achieving it was chosen.
To ensure the carets that indicate the presence and state of the disclosures are reliably rendered when operating system or browser high contrast settings are enabled, visual indication of the show/hide state is created using CSS ::after pseudo element border styles.
Compare to what we have written in the navigation menu bar for similar HCM support:
To ensure the arrow icons used to indicate the expanded or collapsed state have sufficient contrast with the background when high contrast settings invert colors, the CSS currentColor value for the fill and stroke properties of the SVG polygon element is used to synchronize the color with text content. If specific colors are used to specify the fill and stroke properties, these colors will remain the same in high contrast mode, which could lead to insufficient contrast between the icon and the background or even make the icon invisible if its color matches the high contrast mode background.
Prioritize next steps in Tree and Treegrid Pattern and Examples Development Project
Issues to discuss: