Undocumented: How does roTextureManager behave?

I am bringing in this question, because inquiring minds want to know apparently:

Karim Kawambwa@StackOverlow” wrote:
Does the roTextureManager clear or replace bitmaps in its cache automatically when it sees that it is running out of memory? I cannot seem to find any good answer to this.
Some discussion on this avail here viewtopic.php?f=34&t=69730#p451528 - but this never made it to the documentation. Some explanation on the purpose/intent/behavior should be added to roTextureManager documentation page…