s="block">A span that underlines the text it's attached to.</div>
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<div class="col-first odd-row-color class-summary class-summary-tab1"><a href="UpdateAppearance.html" title="interface in icyllis.modernui.text.style">UpdateAppearance</a></div>
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<div class="block">The classes that affect character-level text in a way that modifies their
 appearance when one is added or removed must implement this interface.</div>
</div>
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