| Category Label | Color | Color Preview |
|---|---|---|
| Fundamental Concepts | red | |
| Passive Components | orange | |
| Active Components and Semiconductor Devices | gold | |
| Circuit Analysis Techniques | green | |
| AC Circuit Concepts | cyan | |
| Transient Analysis | blue | |
| Signal Processing and Filters | purple | |
| Amplifiers and Analog Circuits | pink | |
| Power Electronics | brown | |
| Control Systems and Stability | gray | |
| Types of Circuits | olive |