Blender Git Loki

UI: Node Link Menu to use same colors as regular menus

Node link menus (like shader settings in Material properties) used a slightly
brighter variant of the menu widget. Making it hard to style and match the rest.

Make it use widget_menuiconbut, which is just the menu widget with an icon and no arrows.

Thanks Brecht for the help!

Kemap: mirror, flip changes from T55162

Keymap: outliner changes from T55162

UI: Default theme tweaks for Node editor

Keymap: Resolve inconsistencies, T55162

Depsgraph: Don't force copy-on-write when shading changes

Shading is supposed to be dealing with draw manager batch cached
thingamajigs, but was causing full object update.

This was causing both flickering in sculpt mode (PBVH was removed,
why it was SOMETIMES restored before draw is a mystery), and was
also causing things to be really slow.

Depsgraph: Log entry operations which are directly modified and tagged

UI: Default Theme: editor tabs more prominent

Workaround for now until all editors tabs share the dedicated Tab theme
settings under User Interface (which the top bar is currently using).

Thanks SimonStorl-Schulke from devtalk forum for feedback.

Weight Paint: draw from original mesh

Selection changes weren't showing.

Merge remote-tracking branch 'origin/blender2.8' into temp-eeveelightcache

# Conflicts:
# source/blender/draw/engines/eevee/eevee_lightprobes.c

Eevee: Fix incorrect padding in octahedral mapping

This fixes T54439

Enable Grease Pencil paper in edit mode

UI: Default theme tweaks to animation channels

UI: Fix channels using editor header color as background

Channels were using TH_HEADER which is usually gray and unrelated to channels list.
Use sub channel color instead (light blue in the default theme).

Cleanup: remove unused zbuf member

Change UDIM operator poll functions to return bool

Merge remote-tracking branch 'origin/blender2.8' into udim

Added copyData flag to ocean modifier

Fluid Sim: Removed unused PointCache pointer

The only uses were setting it to NULL and asserting it is NULL.

Cloth simulation: share point cache between CoW copies of objects