More Improvements to Infinite Painter.

-save custom patterns with Tile tool (used for Pattern Fill)

-save custom gradients

-separated fill modes (Fill, Gradient, and Pattern are all in the overflow panel)

-removed hovering brush head (doesn't play well with pressure)

-improved layouts for User Uploads, Patterns, Palettes, and Gradients

-remember last symmetry position at the project level

-respect pressure when dotting with the stylus

----CREATED--

-added Share (PEN.UP support, Infinite Studio and Instagram)

*sharing to Infinite Studio will share to the User Uploads section. You can also manage your shared images there as well.

-added Eyedropper and Toggle Eraser to stylus button functions

-added screens on start-up explaining how to use / move the toolbar)

---FIXED---

-Harmony brush artifacts

-Wacom setup

-garbage tiles with undo

-sample bottom layers initial setting

-color pickers layout on phones

-clone with no smudge bug

-other minor fixes