Re: Feature request: tab-line-new-button-show

[Juri Linkov]

> Juri very kindly added `tab-bar-new-button-show' to control the display of
> the new button in tab-bar-mode in response to a message I sent him
> on Reddit.
>
> I think an analogue variable in tab-line-mode would be great for
> keyboard-centric users of tab-line-mode.

Thanks for the feedback.  tab-line-mode definitely should allow doing the same.
Actually it already does.  When tab-line-new-tab-choice is customized to nil -
"No button".

But it seems this lack of symmetry between tab-bar and tab-line
customizations is confusing.  Perhaps this nil option should be moved from
tab-line-new-tab-choice to a new customizable boolean variable
tab-line-new-button-show.