Abrupt gradients - Dynamically updating gradient

This simple example comes from my blog on Using gradients for abrupt color changes in data visualizations

Showing how an underlying gradient can be updated when you move the brush over the rectangle

You can see this technique of abrupt color changes applied to an actual data visualization in these two examples

• The top 10 babynames since 1880
• The growth of BMI over the last 40 years