How to get rid of the white edges?

[ZiguoAtGitHub]

Hi @marcomusy
Happy New Year~~🎉🎉🎉

I add one dimension line with vedo.Ruler. But it looks like a white edge line around the dimension line and label text. (Please see the following figure.) I failed in adjusting the parameters in Ruler function. How can I do to remove the white edge line?
Thanks for any tips.

Here is my code:

#encoding:utf-8
from vedo import Box,Plotter,show,Ruler,settings
import random

#settings.use_parallel_projection = True
#~~Parameters
GTA=130000.0
GFA=8468.0
site_B=87.0
site_D=97.0
NFloors=33#min(int(GTA/buildiing_B/buildiing_D),32)
H=4.2
buildiing_B=(GTA/NFloors/1.1)**0.5
buildiing_D=1.1*buildiing_B

plt=Plotter(size='auto')
site_box=Box(length=site_B, width=site_D, height=1.0,c='lawngreen',alpha=1.0)
plt+=site_box
for iflr in range(NFloors-1):
	plt+=Box(size=[-0.5*buildiing_B,0.5*buildiing_B,-0.5*buildiing_D,0.5*buildiing_D, iflr*H,(iflr+1)*H],c='blueviolet',alpha=0.56).lw(0.12)#random.random()).lw(0.16)
	
#building_box=Box(size=[-0.5*buildiing_B,0.5*buildiing_B,-0.5*buildiing_D,0.5*buildiing_D, 0.0,NFloors*H],c='blueviolet',alpha=0.78)
plt+=Ruler([-0.5*buildiing_B,-0.5*buildiing_D,H*NFloors+0.0], [0.5*buildiing_B,-0.5*buildiing_D,H*NFloors+0.0],units="m",axis_rotation=90,precision=2)#s=2,c='black', alpha=1, lw=2,
plt.show(viewup='z',title='XVedo',interactive=True,axes={'xtitle':'B /m','ytitle':'D /m','ztitle':'Height /m','ztitle_rotation':[0.0,0.0,3.1416/2],
                                                         'z_values_and_labels':[(H*iflr,format(H*iflr,'.2f')) for iflr in range(NFloors)],'ztitle_position':0.98,
                                                         'zlabel_size':0.0125,'zrange':[0.0,(NFloors)*H]})

[marcomusy]

Hi,
I'm afraid this is VTK messing up with the transparencies...
If you disable anti-aliasing is should disappear (but other parts might look uglier):
vedo.settings.multi_samples = 0
(you can also try it out by pressing A to toggle anti-aliasing)

[ZiguoAtGitHub]

Hi Marco,
Thanks for you answer.
Hope VTK could get rid of the ugly flaw as soon as possible.
🙏