Python

Matplotlib

import matplotlib.pyplot as plt

import numpy as np

For default style, you can modify it by creating mpl_configdir/stylelib, where mpl_configdir can be obtained by

import matplotlib as mpl

mpl.get_configdir()

Then, you can create a style file with the extension name of .mplstyle (mod_default.mplstyle here). Here is an example

font.family : Arial

axes.titlesize : 16

axes.labelsize : 16

lines.linewidth : 1

lines.markersize : 10

xtick.labelsize : 16

ytick.labelsize : 16

axes.grid : True

xtick.minor.visible : True

ytick.minor.visible : True

legend.fontsize      : 14

After creating the style file, you need to reload the library and check

plt.style.reload_library()

print(plt.style.available)

Here is some references for existing styles ( https://matplotlib.org/gallery/style_sheets/style_sheets_reference.html )

Since this style file is not a complete one but just to modify some parameters, you still need the default one and replace some parameters using this style file.

plt.style.use(['default','mod_default'])