Grayscale for Charts

For effective visualization  we are always faced with the task of whether the color scheme that we have used with in the bar chart or the histogram will appealto users and convey value.A good test of this as shared by few expers is the grayscal test.After the cards are build there should be an option to the se the card in grayscale.This will immensely help the designer to see whether the color staturation is between different bars is gradual.

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