A colour matching app.?

[Edward78]

You know, a app. to see if your colours are set right on the computer?

 

[melvis]

you mean like screen calibration? if so you most likely want dispcalgui

heres a guide

http://nxadm.wordpress.com/2012/05/06/screen-calibration-on-ubuntu-12-04-with-spyder2-workaround/

 

[Essexraptor]

some monitors also have built in calibration software as well... just a case of pressing the correct button combo