@BetterRed
It's possible to permanently add a user dictionary to a
.bdic file during conversion. If
qwebengine_convert_dict finds a file with a
.dic_delta extension in the same location as the
.dic file, it'll automatically add the words to the main dictionary. (Ideally,
.dic_delta entries should also have morphology codes, but simple word lists will also work.)
For example, if you convert
en_US.dic to
en_US.bdic and
en_US.dic_delta contains the following entries:
PageEdit will offer "BetterRed" and "chillax" as spelling suggestions. (It'd be relatively easy to write a script for adding a user dictionary to a .bdic file during conversion with qwebengine_convert_dict.)