Changed

• Use ResizeObserver for responsive chart resizing instead of listening for window resize events [#8017], with thanks to @Lexachoc for the contribution!
• Describe config.toImageButtonOptions in the plot schema [#8066]

Fixed

• Fix modebar hover colors not updating after color or activecolor changes [#8024], with thanks to @Lexachoc for the contribution!
• Correct the image export types: format now accepts full-json, width and height accept null, and ToImgopts.format, ToImgopts.width, ToImgopts.height and DownloadImgopts.filename are optional because toImage and downloadImage supply them [#8066]
• Pick the trace drawn last on a hover tie in scattergl and splom (matching scatter) [#8079]
• Allow typed arrays in the types for arrayOk number and color attributes [#8087]
• Redraw plots when a font that they use finishes loading [#8094]