The caps are prone to cracking. If they crack open circuit no problem with color change. If they start to exhibit low resistance the appearance will darken note this is not the ceramic but the coating.

If they go too low in resistance they will typically blow open circuit or short circuit. If open circuit you can recognize the progression by the discoloration due to heating. If they blow and short you typically will have a melt down including laminate burning.

Not that I have ever seen it.......8-).  ROFL



Best regards,

John Burke
 

> On Aug 26, 2016, at 2:59 AM, Victor Hernandez <[log in to unmask]> wrote:
> 
> Fellow TechNetters:
> 
>   During the service life of a ceramic capacitor will the ceramic material color change in color due to normal usage?   How about if the circuit draws too much current, overheating condition/leakage.
> 
> Victor,