Hi,
I've already asked this on "BETA tree" , but ... Is there a way to reverse interface graph ?
I mean - I have WAN graph - which is correct (green download , blue upload),
I have two Lans witch graphs is reversed (green upload, blue download)
Is there a way to set "correct" colors for Lans interfaces ?

That cannot be changed and graphs are correct.

It's correct. This not the question.

But cacti and mrtg can do that - it's just one option in mrtg/cacti config file.

RouterOS is not not an ultimate monitoring tool. Graphs show simple interface upload and interface download. If you want more advanced functionality you can use your mentioned cacti.

This was just a question ...