Your IDE does a great job in helping you to program. This includes advanced features like Refactoring, Code completion and support for nifty frameworks. But it can do much more.
Most of the time you actually read the code instead writing it. So how about to make this a bit more pleasant experience (well it was for me at least). Most of the people I see use the standard color scheme of the IDE. I was using it for way to long, that’s for sure. Ever since I tweaked it just a little bit I do find my way around an editor window much more easily.
A couple of things are very easy and provided me with great value.

Coloring your IDE
Several people like to have big fonts for coding. If less text fits on one screen without scrolling you are likely to code smaller methods/classes. I’m not so sure about that one I just find it aesthetically not very pleasing.
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if think first of all one need different colors for:
– parameter color
– local variable color
– instance field color
so onecan see where he uses what
but i also use the usage-highlighting although your colors are too aggressive for me.
i also tried once to build a TextMate brilliance-black-espresso whatever like theme with IDEA but
failed. i think darker backgrounds are better for me, so i should try once again
I will play around with colors for parameters (although my methods are usually pretty short), thanks.
For me it seems that the colors reflect some 80ies / arcade playing background. Again, all that not possible in your usual ABAP development environment. Lucky guys you are.
PS: Does someone remember amber monitors?
My first PC monitor was monochrome (b/w not amber) with an Hercules graphics card (720 × 348!)