How to assign a permanent colour to a specific Symbol/Glyph (SVG)?

Glyphs
1

I am creating a series of Glyphs/Symbols (SVG) to use it in an App. Due to some complexities in the App, one specific Glyph needs to render with one particular colour, permanently. The rest of the Glyphs/Symbol should be styled with the code from the App.

Firstly, is it possible to achieve that using an SVG? Can one Glyph keep a permanent colour? If so, can anyone guide me towards the solution or relevant material?

Thank you in advance.
D

2

This might be the easiest solution: https://glyphsapp.com/tutorials/creating-a-microsoft-color-font
The format is supported on the Mac, too.
And you can use this custom parameter to also export an SVG table: Color Layers to SVG