Useful CSS one-liner trick

There is the grayscale filter in CSS that can make your images fully grayscale.

It is useful when you show a list of logos in grayscale by default and bring color back on hover.

Another trick is to apply grayscale to the whole page. This gives you a different perspective on your UI without color.

This helps you check what draws user attention and whether links, buttons, and interactive elements remain recognizable without color.