This little v1.2.5-beta1 is a preview for the next week version v1.2.5. Mainly "tiled mode" fixes (still need some work in some areas).
This is available in the beta branch:

• Zoom timeline with Ctrl+mouse wheel (or ⌘+mouse wheel)
• Several fixes for Tiled Mode:
• Fixed regression bug on v1.2.4
• Count extra tiles as the canvas size (so we can zoom in on it)
• Brush preview now works as expected
• Fixed Gradient tool in tiled mode
• Fixed exporting new layer blend modes to JSON files