WPE WebKit and WebKitGTK 2.54 introduced a new Skia-based compositor to replace the decade-old TextureMapper, modernizing the codebase and reducing maintenance burden while improving support for filters and masks. The Igalia WebKit graphics team implemented SkiaCompositingLayer with optimizations for filters using color filters instead of intermediate surfaces and simplified mask handling through Skia APIs, achieving performance parity or better than the legacy OpenGL ES-based system.