Re: Does child-frame not support alpha frame param?

[Robert Pluim]

Drew Adams <drew.adams@oracle.com> writes:

>> It's a limitation of the window manager.  For example, it doesn't work
>> with Debian stable's xfwm4 here and it doesn't work with Windows XP
>> either.  That's the main reason why I don't show eldoc info with child
>> frames but use classic tooltip frames instead.  But ISTR that alpha for
>> child frames works with Windows 10 and there might also exist
>> compositing window managers for GNU/Linux that can handle it.  So YMMV.
>
> Dunno how important this info is, or whether this
> is already done.  But if it's not yet done, could
> such info be added to some doc somewhere?  (Thanks
> for considering it.)

(info "(elisp) Font and Color Parameters")