? - OK per HTML 5.2, OK in all browsers tested,
this is really a new page def, and code proximity is much better here.
Dialog-box colors are from bg/fg user settings for entire viewer page.
Page or text scrolls may be needed for mobile and/or very large fonts.
Parts of the following are also used for the Note display in [2.3].
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''-->
Replace me on opens...
Replace me on opens...