Help with results would be appreciated

[SB2020-eye]

Hi. I am working on an OTF SVG color font. I used opentype-svg to add only the glyphs a, b, and c, to test and see if the result worked.

The following is a screenshot of the only program I have found so far that allows me to see my color glyphs in any way on my Windows 11 PC: Character Map UWP (in the Microsoft Store and at https://github.com/character-map-uwp/Character-Map-UWP).

(In case it's hard to tell, a, b, and c are indeed color--a dark brown color.)

I removed height and width parameters from my svgs. I also tried opentype-svg with and without the -k parameter, with the same results.

1. Does anyone know why the color glyphs are bigger than the non-color glyphs and why their baseline is so much lower?

2. Does anyone know of a free program or platform with which I can actually test and use my font to see if it works with the color glyphs? (Or, if there's not one, is there someone with one of the non-free programs who would be willing to let me send them the .otf file and test to see if it the font works as it should?)

Thanks in advance.