* Add scene.replace() and use in ReplacementTransform
This replace method allows one mobject to take the place (that is,
the draw order) of another mobject.
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* Address Feedback
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* Update visual Replacement test and fix extract_frames.py
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* allow flake8 to be unhappy
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* Prevent TransformMatchingTex from crashing when there is nothing to fade
Fixes#2845 and adds tests.
I originally tried to make FadeTransformPieces not crash if it was given two Mobjects with no submobjects, but I couldn't quite get that to work. This is probably the less invasive of a change.
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* use Tex arrows
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* Update expectations after Tex change
* Address feedback
This makes FadeTransform::ghost_to more robust to receiving an empty target. It is currently unspecified what should happen, so how about just fading in place?
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* Add graphical tests for Transform with paths
* Rewrite path function setting in Transform
Currently setting the path function in Transform is done unintuitively,
this commit reorders the path_func assignment to make it more clear what
it's doing.
Passes 609 tests / Skips 12 tests
* Add Parameter DocString to Transform class
* Add Transform test for conflicting path settings
* Apply suggestions from code review
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* Update manim/animation/transform.py
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* Add test
* Seperate test
* Better solution
* Rebasing is hard
* revert changes to get_style
* handle color lists containing None properly
* added test for match_style with gradient
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* Added `about_point` for :class:`~ApplyMatrix`
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* Add unit test
* Fix test
* remove unit_test because transform does not update points
* minor docstring formatting changes
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* make frame_comparison a part of the library
* update frames_comparison imports; move control data
* change import in documentation
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* properly split up boolean_ops tests
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* added __init__ to utils.testing
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