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I am visually impaired, and find it really difficult to locate the mouse pointer on screen. (I am running Ubuntu 16.04.3 LTS) Other OS's have built-in methods to make the mouse pointer more easily visible. In Windows you can turn on "pointer trails" where moving the pointer will leave a trail of pointer images making it easier to visually track/follow the pointer. (I nicknamed them "mouse droppings" ;-) ) And in MacOS Sierra, Apple added a feature whereby if you jiggle the mouse pointer (move it back and forth rapidly) it will temporarily enlarge the mouse pointer, again to make it easier to see on screen. Is there a similar feature (either built-in or provided by a third-party app) for Ubuntu?