This fixes a bug when creating shaders in the newest version of iOS

- Bug Fixes
    - Fixed errors in Screen Size, Volume Flatten and Volume Textures nodes
    - Fixed shader error in Noise 3D node when no position input is connected

- Shade Standard is now free (as in beer)
    - All standard users have been upgraded to Shade Pro free of charge
    - The free trial now unlocks Shade Pro for its duration
- New Example
    - Trail Effect
- New Nodes
    - Screen Size - The size of the screen :O
- Engine
    - Updated to Lua 5.4, improved performance and garbage collection
    - GLTF added to supported preview model formats
- Interface
    - Gradient editor handles touch interaction more consistently
    - Swizzle connections are now easier to drag
- Experimental (Beta features)
    - Drag images into the gradient editor to sample colors directly
    - Transform - Arbitrary 3D vector transformations
    - Time Shift - Shift time for any expression further down the graph
    - Function, Input and Output nodes enabling subgraph editing (very experimental)

- Custom Lighting (finally)
    - Use Light Params and the new Lighting input to have direct control over all lighting in your shader
- New Example
    - Toon Shading (using custom lighting)
    - Triplanar (Simplified) (using new Triplanar node)
- New Nodes
    - Light Params - for use with custom lighting
    - Triplanar - simplified triplanar mapping in one node
    - Spherical (replaced Spherical to Cartesian)
    - SDF Paint
- Experimental (so much so they have no icons yet)
    - Transform UV - experimental sub-network transformation shinanigans
    - Buffer / Buffer Source - experimental double-buffered texture wizardry
- Exporter Plugin System
    - Support for custom lighting and custom unpack normal methods
- Unity (Surface) plugin
    - Added initial support for custom lighting
    - Now using UnpackNormal() for normal maps
    - ShadeUtility.cs is now bundled with the plugin (but not exported), copy to your Unity project in an Editor subfolder to use
    - Graph.json is now exported as well for use with ShadeUtility.cs
    - Texture sampling in vertex function now uses tex2Dlod and correct parameters
    - Default Unity.shader exported in .shader bundles now matches this plugin
    - Plugin now exports folders without .shader extension for improved portability (does not effect ShadeUtility.cs)
- Misc
    - The IAP is a once off forever purchase, functionally identical to a full-price app

- Fixed the main menu UI in the library from rendering incorrectly
- Some potential crashes fixed
- Improves usability on Mac

New Examples:
• Simply Sand - Stylised PBR Island Sand Material based on a certain game with animals that cross paths
• Jack-O'-Lantern - Spooky Halloween pumpkin showing off vertex displacement and parallax offset effects

Performance:
• Reduced texture memory consumption by roughly 1/3rd (should help with super-heavy graphs like Forest Floor)
• Reduced node-preview resolution to save memory

Bug Fixes:
• The background input for Tiler nodes no longer rotates when setting random rotation
• Non-pattern inputs for Tiler nodes now use coordinates relative to the Tiler (instead of stamps)

Misc:
• Updated IAP copy to make extra double super sure that users know we do not have subscriptions, just a FREE trial

New Built-In Plugin:
• Map Export, export all texture maps to a folder for use in other tools and apps

Bug Fixes:
• Repeat/Mirror/Clamp sampling options for texture-based nodes now work correctly
• Updated several plugins to export folders instead of bundles
• Added missing mip level parameter for texture2DLod method
• Built-in Unity exporter code generation fix related to gradient nodes
• 8 and 16 bit Grayscale/RGB/RGBA images are now saved to PNG format correctly

Bug fixes for people living on the edge

*** Emergency Hot-fix replacing version 1.2.2 which contained a serious crash bug ***

- Perceptual Gradients
The Gradient node has been updated with more options.
It now blends your colors using a spline through CIELAB color space, rather than linearly through RGB color space.
You can change this with the `Interpolation Mode` and `Perceptual Color Space` settings in the Gradient node options

- Texture Node Update
Adds `Wrap Mode`, `Filter Mode` and mipmap options

- Improved Unity Export (Pro only)

- Perceptual Gradients 
The Gradient node has been updated with more options. It now blends your colors using a spline through CIELAB color space, rather than linearly through RGB color space. You can change this with the `Interpolation Mode` and `Perceptual Color Space` settings in the Gradient node options

- Texture Node Update
Adds `Wrap Mode`, `Filter Mode` and mipmap options

- Improved Unity Export (Pro only)

Compare Node

- Compare two inputs using logical operators (less than, equal, and so on). Choose which value to send through based on the result of the comparison