import 'dart:ui'; const double kTimelineHeaderExtent = 80.0; const Size kTimelineFixedTileExtent = Size.square(256); const double kTimelineSpacing = 2.0; const int kTimelineColumnCount = 3; const Duration kTimelineScrubberFadeInDuration = Duration(milliseconds: 300); const Duration kTimelineScrubberFadeOutDuration = Duration(milliseconds: 800); const Size kThumbnailResolution = Size.square(320); // TODO: make the resolution vary based on actual tile size const kThumbnailDiskCacheSize = 1024 << 20; // 1GiB