!! Set a default font and font size as below:
*.font: Fira Code:size=12
*.symbols: Symbols Nerd Font:size=12
*.japan: IPAexGothic:size=12
/* dwm config */
dwm.borderpx: 3
dwm.gappx: 15
/* st config */
st.font: Fira Code:size=12
st.symbols: Symbols Nerd Font:size=12
st.termname: st-256color
st.borderpx: 5