So people love making colour correction from different apps like VSCO or Lightroom as it has more control of light and effects on it. So I will show you how to put any Colour correction theme on your lens.
Click on Add new
Then search for post effect and click on colour correction
Go on https://lensstudio.snapchat.com/guides/2d/post-effect/ here and download the Base lookup table as shown in the screenshot below
Now edit this Lookup table on your VSCO app or Lightroom as you edit your photo and save it
Next press on Colour Correction and then press on texture
Change the Texture image with the lookup table image that you edited from VSCO or Lightroom
Now the Custom colour correction is done. Slide alpha bar according to your convenience
Done, You have successfully imported your vsco or Lightroom colour correction on your snap lens.
if you have any question please write it in the comment so i can help you out.