Don't worry, you posted in the right section - its certainly a Power BI development quandry.
The only way I have done this before is using a custom visual that uses JQuery in its update function to re-style the cells in the out of the box table visual based off of their value.
@alex-potter, I guess we could both be right. I was interpretting this as a question about such functionality in native table visualizations in PBI.
Creating a custom visual is certainly an option as well (:
I need to draw a table have some images columns. Has somebody already made this custom visual or do I need to create custom. If I need to create a new custom how can I do that? Please check the below attachment