Report backgrounds and images in Power BI - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ visualization

intermediate

Effect of Background Image Transparency on Report Readability

You added a background image to your Power BI report page. You want to ensure the report visuals remain easy to read.

Which transparency setting for the background image will best maintain visual clarity?

A Set transparency to 100% (fully transparent)

B Set transparency to 0% (fully opaque)

C Set transparency to around 50%

D Set transparency to 10% (mostly opaque)

💡 Hint

Think about balancing image visibility and text readability.

Setting transparency around 50% allows the background image to be visible but not overpower the report visuals, maintaining readability.

🧠 Conceptual

intermediate

Best Practices for Using Images in Power BI Reports

Which of the following is NOT a recommended best practice when adding images as backgrounds or visuals in Power BI reports?

A Use images with text embedded to explain data points

B Avoid using images with strong colors that clash with report theme

C Use high-resolution images optimized for web to reduce file size

D Ensure images do not distract from the main data visuals

💡 Hint

Think about clarity and accessibility in reports.

Embedding text inside images is discouraged because it reduces accessibility and cannot be read by screen readers or searched.

❓ dax_lod_result

advanced

DAX Measure Impact on Image Display Logic

You want to show a background image only when total sales exceed 100,000. Which DAX measure correctly returns TRUE to trigger the image display?

Assume 'Sales'[Amount] is the sales column.

Power BI

Measure = IF(SUM('Sales'[Amount]) > 100000, TRUE(), FALSE())

A Measure = IF(SUM('Sales'[Amount]) > 100000, "TRUE", "FALSE")

B Measure = IF(SUM('Sales'[Amount]) > 100000, TRUE(), FALSE())

C Measure = IF(CALCULATE(SUM('Sales'[Amount])) > 100000, TRUE(), FALSE())

D Measure = IF(SUM('Sales'[Amount]) > 100000, TRUE, FALSE)

💡 Hint

Check the correct use of TRUE() and FALSE() functions in DAX.

Option B uses TRUE() and FALSE() functions correctly, returning Boolean values. Option B uses TRUE and FALSE without parentheses, which is invalid in DAX. Option B misses parentheses on TRUE and FALSE and uses CALCULATE unnecessarily. Option B returns text strings, not Boolean values.

🔧 Formula Fix

advanced

Troubleshooting Background Image Not Displaying

You added a background image to your Power BI report page, but it does not appear when you publish the report online. What is the most likely cause?

A The image format is unsupported (e.g., TIFF instead of PNG/JPEG)

B The image file size is too large and exceeds Power BI limits

C The report theme colors override the background image visibility

D The image is linked from a local file path instead of uploaded

💡 Hint

Consider how Power BI handles image sources for published reports.

Power BI requires images to be uploaded or embedded, not linked from local file paths, which are inaccessible online.

🎯 Scenario

expert

Designing a Responsive Report Background for Multiple Devices

You need to design a Power BI report background image that looks good on desktop, tablet, and mobile devices. Which approach best ensures the background adapts well across these devices?

A Use a large fixed-size image with important content centered and transparent edges

B Use multiple background images and switch them with bookmarks for each device

C Use a small tiled image that repeats to fill the background area

D Use a vector image (SVG) as background to scale without quality loss

💡 Hint

Think about image scaling and important content placement.

A large fixed-size image with centered important content and transparent edges adapts better because the edges can crop on smaller screens without losing key visuals.

Power BI does not support SVG backgrounds or automatic image switching by device type.