up arrow / show a shape based on a formula

Hi,

You can also use Cambria Math symbols to display the arrows.

Using a similar example smoupre gave you, the formula would look like: 

Key = IF([Rank Trend]>-1,"⇧", "⇩")

You can copy the arrows directly from this thread into power bi.

/Ruth

There currently is no ability to edit interactions with shape visualizations or, to my knowledge, any kind of "conditionality" that you can have on shape visuals.

You could potentially get there with a custom column and a related table. What I am thinking of would be a table with your shapes loaded as images (URLs) along with something like an associated number or something, 1, 2, 3. You could have a custom column that based upon the comparison of two numbers, resulted in 1, 2, 3. IF([comparison]>xx,1,2) something like that. Then place the image in a table or card and filter it based upon the item selected. Obviously, I don't know anything about your data and this potential solution would only work in specific circumstances.