None of these changes should be visible, but the files were somehow
out of sync with the blend file, so they need to be updated to reflect
those changes.
Parts of the tool icons for box, circle, lasso, and tweak select that were
meant to be flat or at a 45 degree angle were slightly misaligned, making
the edge look blurry.
- Tweaked icons for Box Select, Circle Select & Lasso Select.
- Tweaked icons for Rip Region & Rip Edge.
- Added icons for Bone Envelope, Bone Size, Pose Breakdown,
Pose Push & Pose Relax.
- Added icons for curve Extrude, Extrude Cursor.
Also removed grease pencil mirror tool which wasn't an active tool,
and is now consistent with regular Edit Mode.
