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* Drop support of Python 3.5, add support of Python 3.9.
* Add EPS export
* Add background-color, negate-colors, and invert-images options
* Improve support for font weights
* Fix opacity of patterns and gradients
* Support auto-start-reverse value for orient
* Draw images contained in defs
* Add Exif transposition support
* Handle dominant-baseline
* Support transform-origin