Applying backgroundColor between consecutive spans

Hi all,

Given a TTML document where multiple consecutive <span
tts:backgroundColor="black">s are separated by a newline, is it true
that:

- the space between consecutive <span>s will not be filled with the
<span> background color?

- in order for the space between consecutive <span>s to be filled with
a background color, the consecutive spans would need to be wrapped in
a <span> with the appropriate background color?

See attached example.

Best,

-- Pierre