How to decrease height of row (with image) in matrix?

Hi JustinDoh1​,
The extra row height is coming from the image cell, not from the PNG itself.

The native matrix does not auto-size rows to the actual image file. It uses a fixed Image size in the format pane (default is often around 75px). That value drives the whole row, including the star columns.

• Shrink the image size (this is the main fix)

1. Select the matrix
2. Format visual -> Visual
3. Expand Image size
4. Set Height and Width to something small, e.g. 20–24 px (range is 8–512)

That should pull the LB/MO rows back down close to the original star-only layout.

• Tighten the grid as well

Still on the matrix:

1. Grid / Options -> reduce Row padding
2. Values -> turn Word wrap off (wrap plus images makes rows even taller)
   
   If you need compact rows and a small icon

If 20–24px still looks too tall, consider not using Image URL for a simple stop icon:

• A DAX/SVG measure with an explicit height/width (Recommended)
• Or a Unicode / conditional icon instead of a hosted image

Image URL is the least flexible option for row height.

Hope this helps! Please consider as an accepted solution if helps and give some kudos to help other community members.