MandelBrowser

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* 3D lighting effects are now a separate feature that can be combined with image filters
* improved supersampling producing much smoother images
* saving images in high resolution up to 8K UDH (6K on Android lower than 10)
* improved palette editor including extracting a palette from an image
* saving the location in the image EXIF data and opening a location from an image
* 160 new examples
* minor improvements and bug fixes