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https://issues.apache.org/jira/browse/TRINIDAD-1743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12849902#action_12849902
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Jeanne Waldman commented on TRINIDAD-1743:
------------------------------------------
I do not think this is a Trinidad bug.
The Trinidad panelHeader has these styles:
<!-- panelBox's header selector -->
<style selector="af|panelBox::header">
</style>
<style selector="af|panelBox::light af|panelBox::header">
<includeStyle name="AFMediumBackground"/>
<includeStyle name="TextForegroundDarkBackground"/>
</style>
You must be styling AFMediumBackground:alias to be C4CEE0.
You should probably override the af|panelBox::light af|panelBox::header in your
skin to change the background color.
You can use @accessibility-profile high-contrast to specify the change only for
high-contrast mode, if that is necessary.
> CorePanelBox color contrast ratio is too low, violating Accessibility
> guidelines
> --------------------------------------------------------------------------------
>
> Key: TRINIDAD-1743
> URL: https://issues.apache.org/jira/browse/TRINIDAD-1743
> Project: MyFaces Trinidad
> Issue Type: Bug
> Components: Components
> Environment: using CorePanelBox in an ADF Faces rich client
> application, on any OS or browser.
> Reporter: Jim Evans
>
> The text in the CorePanelBox title bar has the style class
> "af_panelBox_header", which has background-color:#C4CEE0 (light blue) and
> color:#FFFFFF (white). This is insufficient color contrast according to
> Oracle's accessibility guidelines, and is flagged as a violation by our
> compliance tool. Even to a sighted person like me, this combination seems
> too low-contrast.
> To repro, create a brand new application and page, with only a CorePanelBox
> on it:
> <tr:panelBox id="pb2" text="This contrast is too low"/>
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