The ability to set a dark and light theme with user choice for report
It would be convenient if you could define not one general theme, but two and set colors for each of them. The report user could choose one of them.
Gradients fill and smoothing in visualizations
the ability to create a gradient in the visualization
https://community.powerbi.com/t5/Custom-Visuals-Ideas/Gradients-fil...
Ability to select elements from behind the canvas border
Sometimes you really need to select an element with an edge, but when you try to start a selection beyond the edge of the canvas, it doesn't work.
The ability to use formulas when specifying the visualization position and width or height
it would be convenient to be able to use formulas to determine the exact position of elements
Change position of canvas and selection and the ability to highlight elements from outside
Sometimes it would be nice if the canvas was displayed below, as the member code obscures most of the canvas.
It is also very difficult to select elements that are on the edge.
Add conditional formatting for Error bars
It would be very useful if it was possible to set the color of Error bars via measures.
Resize and add a search to the window with the relationship
It would be convenient if you could change the size of the modal windows, including adding a search bar. For example, in the window for editing relationships between tables.
Swap connection in "Manage relationships" + resizable window
It would be convenient if you could change the order of the columns in the relationship with one button, so you can sort further in the "Manage relationship" window.
Grouping tables in the Model View with the ability to collapse groups
It would be convenient to be able to bind tables to a particular group, set the color of this group and then, if necessary, to collapse these tables at the visual level.