Question 1

What do I actually receive after purchasing?

Accepted Answer

You get access to copy the Vega JSON spec directly from this page. Upload your two images, set it up how you want it, then paste the spec into Ataytis Vega Studio inside Power BI Desktop. The images travel inside the spec, so there are no separate files to manage.

Question 2

What is Ataytis Vega Studio?

Accepted Answer

Ataytis Vega Studio is our free, Microsoft-certified Power BI visual for rendering Vega specifications inside your reports. Install it once from Microsoft Marketplace in Power BI Desktop, then paste in any spec.

Question 3

Are my images uploaded to your servers?

Accepted Answer

No. They are read, resized and encoded entirely inside your browser, and only the settings — sizes, colours, labels — are ever sent to us. The pictures are added to the spec on your own machine after the spec comes back.

Question 4

How do I add this to my report?

Accepted Answer

1. Add a Vega Studio visual to your report canvas.
2. Click Edit in the visual toolbar.
3. Paste the JSON spec into the Vega editor tab.
4. Click Apply — the comparison renders straight away. Drop any field into the visual to switch it on; the spec does not read it.

Question 5

Why does the page resize my images?

Accepted Answer

Because the picture has to fit inside the spec as text, and text is about a third larger than the file it came from. A photograph straight off a phone would produce several megabytes of JSON to paste and save with the report. The page shows you the resulting size and lets you pick how sharp to go.

Question 6

Can the images change with a slicer?

Accepted Answer

No. Both pictures are fixed at the moment you copy the spec. A visual that swapped images from your data would have to fetch them from somewhere, and a certified visual cannot make network requests.

Question 7

Do the two images need to be the same size?

Accepted Answer

They need the same proportions, or they will not line up behind the handle and the comparison stops meaning anything. They do not need identical pixel dimensions — the page warns you if the shapes differ.

Question 8

Does the drag work in Power BI Service?

Accepted Answer

Yes. All the interaction runs inside the Vega Studio visual and behaves the same in Power BI Desktop and in the Service, for any viewer on Pro or Premium Per User capacity. Custom visuals are not available in the free tier of Power BI Service.

Question 9

Can I use this in client reports or commercially?

Accepted Answer

Yes. Once purchased, you can use the visual in any report for personal or commercial use, with your own images. You may not resell or redistribute the raw JSON spec itself.

AtaytisTech Visuals

AtaytisTech Library

Power Reveal

How it works

AtaytisTech Visuals

AtaytisTech Library

Power Reveal

How it works