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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Scrollbars render with glitches using GTK themes that do not define a background for them"
href="https://bugs.webkit.org/show_bug.cgi?id=145513">145513</a>
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<th>Summary</th>
<td>Scrollbars render with glitches using GTK themes that do not define a background for them
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
</td>
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<th>Component</th>
<td>WebKit Gtk
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
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<th>Reporter</th>
<td>aperez@igalia.com
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=254001" name="attach_254001" title="Screenshot">attachment 254001</a> <a href="attachment.cgi?id=254001&action=edit" title="Screenshot">[details]</a></span>
Screenshot
With GTK+ themes where the background of the scrollbar is set to transparent,
the scrollbar painting does not seem to be blended with the web view as
background, and the scrollbar marker is just painted over and over, without
ever clearing the background.
Reported downstream for the MosSky theme here:
<a href="https://github.com/dasnoopy/moslight-themes/issues/14">https://github.com/dasnoopy/moslight-themes/issues/14</a>
The theme author commented:
<span class="quote">> it seems to be something related with webkitgtk and the new overlay scrollbars
> introduced with gtk+ 3.16. As workaround I'll set a white background for
> scrollbars.</span >
Probably there is something that should be done in the WebKitGTK+ side to have
the transparent background in scrollbars render properly blended over the web
content.</pre>
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</p>
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