Back in Flex 1.5, I created a simple DebugWindow that was 1 class, and worked inside of Flex apps. Â I don’t like a lot of complexity, and the fact I just needed to drop 1 class in my project, and write 2 lines of code to make it work was something that no others delivered on. Â Using trace required you to not look at your Flex app to see traces, you had to run in debug mode, and you had to use ASCII art to filter messages. Â IÂ was using LuminicBox for Flex 1.5 projects later in the game, and in 2 & 3, I used the AS3 update of it by Mark Walters. Â There were a couple of problems, though, and some features I wanted to add.