PyneCore v6.0.12 - Bug Fixes and Color Interpolation

🚀 New Features

Color Interpolation

• Color gradient support: Added color.from_gradient() function for smooth color interpolation between two colors based on a value within a range
• Enables advanced color transitions for indicators and visual elements

🐛 Bug Fixes

Function Isolation

• Inner function shadowing: Fixed critical issue where inner functions that shadow Python builtin names (e.g., filter, max, min) weren't being properly isolated
• Now correctly tracks shadowed builtins per scope and isolates them appropriately
• Prevents conflicts between user-defined functions and Python builtins

Persistent Variables

• Annotated assignments: Fixed bug where persistent variable references weren't being transformed in type-annotated assignments
• Example: alpha: float = length_2 now correctly transforms length_2 to its persistent form
• Added comprehensive test coverage for this scenario

Type System

• Generic type support: Enhanced is_na() function to support GenericAlias types like list[float]
• Improves compatibility with modern Python type annotations

🧪 Testing

• Added new test cases for persistent variable transformation in annotated assignments
• Improved test coverage for edge cases and regression prevention

📈 Impact

These fixes improve Pine Script compatibility and prevent subtle bugs in compiled code, especially when using common function names or complex type annotations.