Add new arrow buttons icons for left, right, up and down.
Add new subtract button icon.
Align path icon with pixel grid.
Add new version history button icons.
Add new redirect button icon.
Add new close button icon.
Nudge tick button icon 1 pixel right.
Add new stop button icon.
Add new filter button icon.
Add new tag button icon.
Add new mail button icon.
Revised mail button icon.
Add new send button icon.
Rename article button icon as star.
Tweak send button icon.
Add new refresh button icon.
Rename children icon as list.
Tweak trash button icon.
Simplify and optimise barcode icon for pixel grid.
Add optional custom menu include.