Improving performance in the layers panel

Figma rebuilt the layers panel architecture to improve performance with large files.

• •Two-pass computation: first pass fetches row IDs, second pass computes data only for visible rows using windowing technique
• •Implemented derived properties system for automatic dependency tracking and caching similar to spreadsheet formulas
• •Used rope-like data structure for memory-efficient caching, reducing memory usage from O(n²) to O(n)
• •Achieved 30-50% faster layer panel interactions and improved overall editor performance

This summary was automatically generated by AI based on the original article and may not be fully accurate.