Add FreshRSS icon

[10xLaCroixDrinker]

Issue: closes #10698

Popularity metric: 8.4K stars

Checklist

• I updated the JSON data in _data/simple-icons.json
• I optimized the icon with SVGO or SVGOMG
• The SVG viewbox is 0 0 24 24

Description

[uncenter]

I wonder if there is a way we can show the differences in shading of the original icon in a monochrome form. Maybe the lighter blue sections are outlined instead of solid?

[10xLaCroixDrinker]

Maybe the lighter blue sections are outlined instead of solid?

Done. Updated preview in description

[uncenter]

I'm seeing differences with the circle in the center.

[10xLaCroixDrinker]

I'm seeing differences with the circle in the center.

Should be all good now 👍🏻

[uncenter]

Still seeing differences with the blue circle on my end.

[10xLaCroixDrinker]

Still seeing differences with the blue circle on my end.

Okay now it should be all set

[uncenter]

Shoot, still seeing differences! The differences around the center circle are small enough to not matter but the differences around the outer rings needs to be fixed.

[uncenter]

This may be an issue with the precision when you are optimizing it FYI. You can try a precision of 3 or 4 to see if that helps.

[10xLaCroixDrinker]

@uncenter I redid the whole thing and I used a precision of 3 when optimizing.