Bug: barcode icon in Duotone is coloured differently than in Sharp Duotone

[randomguy-2650]

Bug description

For the barcode icon in Duotone, it is coloured as the secondary (translucent) colour for the entire icon, whereas for Sharp Duotone, it is actually Duotone, because it includes the main colour (opaque) and the secondary colour (translucent) too, which makes sense.

Side note: For many Duotone icons including Sharp Duotone has only the secondary colour for the entire icon (example: star) whereas Version 5 icon equivalents have them entirely Duotone.

Reproducible test case

Compare https://fontawesome.com/icons/barcode?f=duotone&s=solid and https://fontawesome.com/icons/barcode?f=sharp-duotone&s=solid

Screenshots

Font.Awesome.Duotone.vs.Sharp.Duotone.barcode.icon.mp4

Font Awesome version

v6.0.0 – v6.6.0 (applies for all version 6 releases)

Serving

Kit, Font Awesome CDN, Self-hosted, Other (as specified in the bug description)

Implementation

CSS, SVG+JS, SVG Sprites, Other (as specified in the bug description)

Browser and Operating System

All operating systems on all browsers, issue in Font Awesome's icons

Web bug report checklist

• I have included a test case because my odds go way up that the team can fix this when I do
• I have searched for existing issues and to the best of my knowledge this is not a duplicate