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TERMINALS update some verbiage; defbg queries are no longer conditional

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nick black 2021-10-28 15:51:23 -04:00
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@ -107,22 +107,27 @@ Kitty has some interesting, atypical behaviors. Foremost among these is that
an RGB background color equivalent to the configured default background color
will be rendered as the default background. This means, for instance, that if
the configured default background color is RGB(0, 0, 0), and is translucent,
a background of RGB(0, 0, 0) will be translucent. To work around this, when
`TERM` begins with "kitty", we detect the default background color, and when
we would write this as RGB, we alter one of the colors by 1. See
https://github.com/kovidgoyal/kitty/issues/3185 and
a background of RGB(0, 0, 0) will be translucent. To work around this, we
detect the default background color if possible, and when we have done so *and*
verified that the terminal is Kitty *and* we would write this as RGB, we alter
one of the colors by 1. See https://github.com/kovidgoyal/kitty/issues/3185 and
https://github.com/dankamongmen/notcurses/issues/1117.
Kitty is furthermore the only terminal I know to lack the `bce` (Background
Color Erase) capability, but Notcurses never relies on `bce` behavior.
Color Erase) capability, but Notcurses never relies on `bce` behavior, and
goes to some lengths to avoid triggering it.
Kitty has introduced an unambiguous [keyboard protocol](https://sw.kovidgoyal.net/kitty/keyboard-protocol/).
Notcurses supports this protocol when it is detected.
The Kitty [graphics protocol](https://sw.kovidgoyal.net/kitty/graphics-protocol/)
is superior in just about every way (save breadth of support) to Sixel.
### WezTerm
WezTerm [implements](https://wezfurlong.org/wezterm/escape-sequences.html) some
interesting underline options, and both the Sixel and Kitty graphic protocols.
interesting underline options, and both the Sixel and Kitty graphic protocols
(I think it even handles iTerm2).
### GNU screen