Creating Schematic

I was just following the tutorial for this journal :D

I decided to add battery support as well. I was looking into adding Wifi; unfortunately, it seems impossible unless I add an entirely new MCU

Im adding 3 LEDS:

One battery percentage

One PWR (shines when PCB is on)

One that is just programmable.

I later decided 2 PWR LEDS are redudant; I was imagining the PWR only for USB-C, however, I can just make it shine a dif color.

I was thinking either MAX17048 IC as the fuel guage or voltage divider; to save space, I will use voltage divider (although it may be more inaccurate, it shouldnt really matter too much.)

Voltage divider calculation

𝑉ADC=𝑉BAT⋅𝑅2/(𝑅1+𝑅2)

1.4=4.2*R2/(R1+R2)

0.33=r2/(r1+r2)

I finished the schematic and am unsure, so I asked for a schematic review