* Change aliasing to exact matches of the color data.
* Don't "GC" away schemes that are no longer reachable from aggregators;
just because they are no longer listed elsewhere, doesn't mean that we
should remove the name/scheme from wezterm if it was already made
available in an earlier release.
refs: #3831
This is fixing a regression introduced by the fix for #2845.
The resolution for this is relatively straightforward, but took a bit
of effort to plumb.
Previously:
* CTRL/ALT/SUPER-modified keys with no explicit expansion would end
up just taking the US layout version of the key. That worked well
for the intended problem with non-latin layouts, but for eg: German
layouts it caused expansion to totally the wrong thing
Now:
* CTRL/ALT/SUPER-modified keys which effectively expand to non-ascii
text (eg: cyrillic "Es") now take the equivalent key press from the
US layout (which would be "c" in the "Es" case). For European
layouts this heuristic seems to avoid unexpected effects, but could
do with some validation from native users.
To support this, the xkb code splits the `Keyboard` struct out from
some of the higher level logic and introduces a `KeyboardWithFallback`
struct that is built out of the user-selected keyboard layout, and
the fallback keyboard. Now the fallback keyboard is fed the same
key inputs as the selected keyboard to correctly model the key
combinations.
refs: #3610
refs: #3933
ssh connection or host authentication errors would not be displayed
when the config was in its default exit_behavior=Close state.
This commit introduces some plumbing to allow a pane to override
the effective exit_behavior value, so that ssh sessions can now
rewrite it to CloseOnCleanExit while they are in the process
of connecting.
refs: #3941
Given a sequence like this, where the `ESC [ K` sequence is
emitted at the last column when wrap_next=true:
\u001b[47;30m 17:24:50 \u001b[0m\u001b[K
rather than treating the column as out of bounds, we'd clear the
final cell.
refs: #3548
Avoid a "flash" of a single black but likely overly stretched and
awkwardly interpolated frame while we wait for big/animated/complex
images to load and decode.
For corrupt images, or images with an incorrect or typo'd filename in
the config, this prevents us from punting and just showing a transparent
background instead of something reasonable.
There were a couple of layers of issue here:
* In the ImageDataType::decode method, we didn't detect and do something
reasonable when the decoded image had 0 frames, later leading to
a panic in glyphcache when trying to index frame 0 of an empty vec.
* We shouldn't have been using ImageDataType::decode for window
background images
* Make the fallback/placeholder black rather than fully transparent
in the more modern decoder thread routine that we use for image
decoding at the gui layer.
refs: #3614
