Constructive point: I like the color coding, but use it. Server: red, database: yellow, app: blue. Javascript: blue Postgres: yellow Nginx, Apache: red Django:

Constructive point: I like the color coding, but use it. Server: red, database: yellow, app: blue. Javascript: blue Postgres: yellow Nginx, Apache: red Django: purple Node: blue Express.js: purple LAMP: white? If that won't work, maybe shades of those colors for the various types