ChimeraX shows electron density mesh as a line object and you can’t adjust the width. A hack around this is to select the map and color the selection to match. For example if your map is #2:

select #2

graphics selection color licorice

color #2 licorice

-- 

Kevin M. Jude, PhD

Structural Biology Research Specialist, Garcia Lab

Howard Hughes Medical Institute

Stanford University School of Medicine

Beckman B177, 279 Campus Drive, Stanford CA 94305

From: Abhipsa Shatarupa via ChimeraX-users <chimerax-users@cgl.ucsf.edu>
Date: Wednesday, October 22, 2025 at 3:22 PM
To: chimerax-users@cgl.ucsf.edu <chimerax-users@cgl.ucsf.edu>
Subject: [chimerax-users] Question about density map visualization for figures using ChimeraX

Hello,

I am currently preparing figures for a publication and am using ChimeraX to render a density map. The color of the mesh representation I am using is set to licorice, but after I save the image in TIFF/PNG format at 7602 × 5680 resolution, the mesh appears quite faint.

Could you please advise on how to make the density appear darker or more prominent in the saved image?

Thank you!

-Abhipsa