What do the colors in the timeline render bar in After Effects signfify I have searched the web and PDF manual for clarification on what the colors signify on the render bar over the timeline in after effects but for some reason I cant find a resource covering them all.

Here's what I've found


No Color - not rendered
Green - rendered into RAM
Blue - rendered into Global performance Cache


My questions


Is this above correct?
Are there any other colors? - ( I had thought there was a yellow and a red but I think these are used in Premiere Pro not After Effects )
All of the information is correct, to be clear:


Green cached on RAM
Blue cached on disk


Pressing 0 on the num pad you will notice that on the blue line frames will render faster then on the none line.
Of course it will skip the green line because this process is called "Preview RAM" and as I have just said Green means written on the RAM.

No any other colours in AE.