If you write long form content and do lots of screenshots, you can make your images and article look way better just by framing your screenshots.

Framing the screenshots keeps them full width in line with the edges of the article, which gives everything a consistent look and feel. The images also look better.

Take it a step further and do proper zooming on smaller images so you capture the important areas. Use your browser zoom to make the small elements larger and in focus.

I use a tool called Xnapper for framing my images. For full app captures I use Cleanshot X (both are for Mac)