I'm a hobbyist (well, less than a hobbyist really) trying to layout my first PCB design. I'm somewhat familiar with the concept of decoupling capacitors. I'm fading 3 LEDs in and out (really, it's an RGB LED and I'm trying to create blended colors). I'm using ATTiny's PWM pins to accomplish this.
I'm planning to add a 100nF ceramic disk capacitor between the VCC and GND on the IC, but I'm not sure if I also need to decouple the LED signals. If so, do I put them close to the LED or close to the IC? What size caps do I use?