See the product description for Colorizer in my shop

This module gives you the possibility to highlight important fields in DetailView and ListView, your vtigerCRM users should look at. (Colors in ListView requires to add one line in one vtiger source file and has some limitations.)

For example you could change textcolor to red, if a date was gone and a checkbox isn’t checked.
You could configure every possible combination of fields!
Since version 2.0 you could use a blink function to mark very important fields or issues!

Also you could collapse/hide a complete block, if a condition is true or false and automatically toggle visibility if values are changed