Hi Guys
while I'm attempting to play with QB64 I got this feedback from new IDE messages in the part of warning...
to reply my experience please 
Copy and Paste this in QB64ide
 you must get the message 
OK e warnings
and after click on it  you should get this message
Costant already defined:same value
line 1: True
line 1: False
line1: Blu
but if you put the colors definition on another line the warnings go away.
I hope this feedback can be useful for QB64 developers.