Kurt Buhler shows one way to customize Power BI visuals:
When creating reports in Power BI, you regularly come across scenarios where you want to show data in a certain way that is not straightforward in the standard “core visuals”. Sometimes, the visualization needs to reflect particularities about an organization’s business processes or its data. Other times, you simply want a more creative design to visualize the data in the most effective way. In this article, we discuss what to do in these scenarios, describing one method where you can make custom visualizations by using a single DAX measure, and the caveats and limitations of this particular approach.
In this article, our objective is to produce a matrix visual with the Timeline SVG, like in the following diagram.
Read on for several methods to handle when Power BI doesn’t do something out of the box, and a focus on creating a custom visual via DAX measure with an SVG. But do read the whole thing, as Kurt explains why this isn’t necessarily a great method.