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+5.39 * New hacks, 'razzledazzle', 'peepers', 'crumbler' and `maze3d'.
+ * More heuristics for using RSS feeds as image sources.
+ * Android: Image loading works.
+ * Built-in image assets are now PNG instead of XPM or XBM.
+ * X11: Better font-loading fallback heuristics on systems with a
+ terrible selection of installed fonts.
+ * macOS: Retina display-related bug fixes.
+
5.38 * New hack, 'esper'.
* macOS: Support for Retina displays.
* X11: `webcollage' now works with ImageMagick instead of with