I will download the footprint later, there are a lot of emc stuff i ignored, this is a led dimmer. 4 pwm pass though the led driver, will certainly cause problems. There is temp sensor r13 connected to adc1_in,etc
The cross in the hole is result of gnd copper pour, i will draw keepout to prevent them showing up. It does not matter i think.
the default setting of zone clearance setting is 0.508, the clearance between track is 0.25.