Aptus

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* Web interface.

* Requires Python 3.9 or higher.

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Next release
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* Multi-threaded.

* Added full-screen mode. 'f' toggles between full-screen and windowed.

* Window size can be set interactively with the 'w' key. Enter an explicit size,
or 's/2' (or s/3, s/4, etc) for half the screen size.

* Un-computed pixels are shown as gray checkerboard.

* If the view crosses the x-axis, the symmetry is used to speed up computation.

* 'o' opens saved settings or image files (*.aptus or *.png).

* Files can be dropped on the Aptus window to open them.

* The About section of the Help dialog now shows versions of installed
pre-requisite packages.


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* Multiple top-level exploration windows. Use 'n' to make a new window.

* Tool panels show supplementary information:
* You Are Here shows your location in the Mandelbrot set. Use 'l' to show it.
* Palettes panel shows all the palettes, and the one currently in use.
* Statistics panel shows statistics about the latest computation.
* Point Info panel shows information about the current point, shift-hover to indicate point.
* Julia panel shows Julia set for the current point, shift-hover to indicate point.
Double-clicking the Julia panel opens a new exploration window to explore that Julia set.

* Computation improvements:
* Faster.
* The exploration window updates during computation.
* Continuous coloring is more accurate now: banding artifacts are gone.
* When dragging the exploration window, pixels still in the window aren't re-calculated.

* Center and diameter can be specified in the command line arguments.


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* Yet more painting improvements. Thanks, Paul Ollis.


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* Painting is now flicker-free. Thanks, Rob McMullen.


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* Painting didn't work at all on Mac or Linux!

* Some keys didn't respond on Linux.

* Shifting the palette into negative offsets caused incorrect jumps in colors.


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* Continuous coloring.

* Rotation support.

* Middle mouse button drags the image.

* Palette tweaking:
* Hue and saturation adjustments.
* Scaling the palette to adjust distance between colors.

* More statistics: boundaries traced, boundaries filled, and points computed.

* Statistics are written into the final .PNG files.

* Reads .xet files from http://hbar.servebeer.com/mandelbrot/coordinates.html