Editing Demogroup (section)

===Coder===
The coder is the demogroup's programmer who creates the demo's software framework and is responsible for the actual realtime state of the demo. While some coders specialize in developing system-level functionality (such as providing wrappers and [[application programming interface|API]]s for other coders to base their code on), others code effects which are usually visual representations of mathematical formulas, such as [[fractal]]s or [[metaballs]].

In the 1990s, coders were most often entirely responsible for the demo's flow and arrangement, including the effect's synchronization to the music and sometimes even the design. Nowadays, software tools known as ''demotools'' are widely used, allowing this work to be done by a designer who does not have to be a coder. Many groups, however, still prefer that the coder takes most of the responsibility in the demomaking process, including the design.

In many cases, an attempt for excelling in several areas has resulted in one area outshadowing the others: for instance, coders who try to make music often come up with "coder music" which may be technically passable but lacks artistic ambitions. "Coder graphics" and "coder palettes" are similar terms for graphics and color schemes.