For those of you that have purchased Blitz. Here's a theme that might look familiar for the Freebasic IDE called FBIDE. Which I made and use, and thought others might like it too.
Instructions: What you'll need to do is grab the zipped attachment and plonk it into the FreeBasic\IDE sub folder ( or if its different, to where you've installed FBIDE\IDE ). And all should be hunky dori.
For the .txt version, you should rename it as a .fbt extension and behave in the same fashion as per the zipped offering.
Cheers and Hope its of some use to you,
Clyde
[Edit - Added .zip attachment ]