Skip to content

Instantly share code, notes, and snippets.

@dunielpls
Forked from hexdefined/wireshark-dark.py
Created October 11, 2023 19:39
Show Gist options
  • Save dunielpls/caee90d2d975b1f6d1c9e28da52e7f1d to your computer and use it in GitHub Desktop.
Save dunielpls/caee90d2d975b1f6d1c9e28da52e7f1d to your computer and use it in GitHub Desktop.
Invert the luminosity of Wireshark packets (for dark themes)
#!/usr/bin/env python3
import fileinput
import re
from colorsys import *
def rgb_to_hsl(r, g, b):
return hsv_to_hsl(*rgb_to_hsv(r, g, b))
def hsl_to_rgb(h, s, l):
return hsv_to_rgb(*hsl_to_hsv(h, s, l))
def hsv_to_hsl(h, s, v):
l = v - v * s / 2
s = 0 if l == 0 or l == 1 else (v - l) / min(l, 1 - l)
return h, s, l
def hsl_to_hsv(h, s, l):
v = l + s * min(l, 1 - l)
s = 0 if v == 0 else 2 - 2 * l / v
return h, s, v
def process(rgb):
rgb = [int(x) / 65535 for x in rgb]
hsl = [*rgb_to_hsl(*rgb)]
hsl[2] = 1 - hsl[2]
return [round(x * 65535) for x in hsl_to_rgb(*hsl)]
for line in fileinput.input():
if len(line) == 0 or line[0] == '#':
continue
# line format: @name@filter@[0,0,0][65535,65535,65535]
colours = re.findall('\[(.*?)\]', line.split('@')[-1])
bg, fg = [process(x.split(',')) for x in colours]
new_colours = '[%d,%d,%d][%d,%d,%d]' % (*bg, *fg)
print(re.sub('[^@]+$', new_colours, line))
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment