There is no way to support extlinks with a custom caption in both sphinx
< 4 and >= 4 at the same time without implementing different behavior
per version.
Substitutions in the caption are only supported in version 4 of
sphinx.
However, RTD uses sphinx 1.8.6
Just letting it append the value seems to work in both 1.8.6 and newer
versions.
tray-padding determines space added before and after each icon
tray-spacing determines space added between icons (but not at the edge)
Both are an extent value and accept both pixel and point values.
The size accepts a percentage with offset relative to the bar height and
determines the width and height of tray icons.
Defaults to 66%
Does not affect spacing
Currently, we don't support 32-bit visuals and don't set
_NET_SYSTEM_TRAY_VISUAL
It is unclear what happens if the default visual (which is used as a
fallback if _NET_SYSTEM_TRAY_VISUAL is not set) is 32-bit.
In that case, we may need to explicitly use a 24-bit visual.
Not doign this. Using the desired background as the X window background
color would require us to always first check before using the pixmap or
cairo context.
Using CMAKE_INSTALL_SYSCONFDIR does respect CMAKE_INSTALL_PREFIX, but it
prefixes it to CMAKE_INSTALL_SYSCONFDIR, which results in the default
config being installed to /usr/etc/polybar/config.ini or
/usr/local/etc/polybar/config.ini
CMAKE_INSTALL_FULL_SYSCONFDIR gives an absolute path that respects the
prefix but does the right thing (uses /etc) if it is /usr
Ref: #2770
The module has a poll timeout because it needs to periodically check if
it is shutting down. Otherwise, it would be stuck polling and the bar
couldn't shut down until the script produces a new line.
However, this causes the bar to wake up intermittently (currently
~40/s) due to the 25ms timeout.
Bumping this to 250ms still gives us timely shut downs and caps the
number of wake ups to 4/s.
This is only a stop-gap solution, ideally the script runner is
integrated into the main event loop and uses its polling handles which
don't have to wake up to check for a shutdown.
Ref #1778
Ref #2337
