Slight performance improvement, maybe?
Also, `kitty/graphics.h` has been reverted to the original version;
this version would be better in that aspect too.
It uses draw_graphics, which uses a scissor, but the scissor was set by
the last call to draw_cells() which is not called during a resize,
leaving us with an incorrect scissor.
Fixes#4160
Also clean up handling of dynamic global colors.
TODO: Implement none for selection_fg
TODO: Add some tests
TODO: Check that changing colors via remote control works
Fixes#126
Avoids an unnecessary reversal of premultiplication when rendering
interleaved. Also fixes rendering on wayland which for some reason was
using a different blend function than X11. Fixes#4120
Right now visual bell makes background flash sharply with bright white
(when configured with darkish color theme). This causes eye strain,
especially prominent in unlit environments.
This change makes background bounce smoothly between regular bg color
and highlight (selection) bg color for the configured visual bell
duration. Intensity is animated with cubic easing functions. It
currently peaks at 20% of the duration, this is hardcoded.
Mark functions computing intensity and easing as inline
Do smarter blending of visual bell flash
Blend highlight color with pegtop's softlight mode over both background
and half as much over foreground. This should help with flash visibility
in light themed and inverted colors contexts.
Blend flash in BACKGROUND pass also
Revert "Do smarter blending of visual bell flash"
This reverts commit 9a269d55c7d04334b1c4891c42914423517dfad6.
Revert "Blend flash in BACKGROUND pass also"
This reverts commit 756332cb9d7576b08db78406e37349aa6d1df156.
Revert "Make visual bell flash much more gentle"
This reverts commit cbfe5d59ada2da690e14c7532a7468b0c307c462.
Render flash overlay in a separate drawcall
Trigger frequent repaints to make for smooth animation
Attenuate flash a bit more
