[Users] Color choices affected by non-standard quote characters

[Little Girl]

Hey there,

I use Claws Mail 4.0.0 in Kubuntu 22.04 LTS and I've got a question
about non-standard quote characters affecting colorization of text in
received messages.

This Claws Mail configuration section offers me the ability to
colorize the foreground and background of 1st level, 2nd level, and
3rd level quoted text:

Configuration --> Preferences... Display --> Colors --> Quote

This Claws Mail configuration section offers me the ability to specify
what should be at the beginning of a line to indicate that a line is
quoted text:

The Configuration --> Preferences... Message View --> Text Options
--> Quotation --> Treat these characters as quotation marks

All of this works beautifully and displays my preferred colors in the
messages I receive as long as the sender uses my preferred quoting
method (which most people do). So, for example, since my preference
is for > as the quote character at the beginning of the line and
since that's a standard character for that purpose, most people's
messages are colored the way I like them.

Once in a while, though, I'll receive a message from people who use
unusual characters or character-combinations for quoted text (as in
AB> or -> or some other combination) and then the quotes don't get
colorized properly at my end, but are partially treated as plain
text. This paragraph, for example, contains AB> as one example
character-combination. I'm attaching a screenshot showing that
although Claws Mail colorized the line that begins with AB> as quoted
text (which is, in itself, interesting), it didn't continue the
quoting on the lines that came after it as it would have done if the
line had begun with >.

As an example, I'll put a greater-than symbol at the beginning of the
> next line and then keep on typing something so that this line wraps
> again. As you can see, Claws Mail considers everything after that
> first quoted line as part of the quote until the Enter key is
> pressed. That's as it should be.

Is there a setting somewhere that I can use to tell Claws Mail that
although I prefer to consider just a greater-than symbol by itself as
the indicator for quoted text, that it should also recognize these
other user-specified character combinations as indicators for quoted
text when doing the coloring?

-- 
Little Girl

There is no spoon.
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