This week's Excel Optical Illusion is called the Dynamic Luminance-Gradient Effect and was modeled after Alan Stubbs's creative work
Just lean forward toward your monitor and back again to see the luminance optical illusion.
This is a Radar chart with radial gradients for the series and the plot area. The file is an .xls and so will work (sort of) for older versions. Radial gradients are new so versions previous to Excel 2007 will render the gradients as a rectangle, with muted colors, but interestingly the illusion still presents!
Here's the file.
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Why do I share these optical illusions? The techniques that are used to make them, when mastered, can be used in many other Excel projects, in charting, formula crafting, and formatting. Learn them. They will aid you on your journey to become an Excel Hero.
Here is a list of other Excel Optical Illusions here at Excel Hero:
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