Update PlaygroundRenderer.js

[kulakowka]

I want to suggest a change in the styles of the playground:

[codecov-io]

Codecov Report

Merging #379 into next will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             next     #379   +/-   ##
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  Coverage   93.73%   93.73%           
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  Files          74       74           
  Lines        1038     1038           
  Branches      211      211           
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  Hits          973      973           
  Misses         65       65

Impacted Files	Coverage Δ
...rc/rsg-components/Playground/PlaygroundRenderer.js	90.9% <ø> (ø)	⬆️

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[okonet]

I like the idea! But I think this should be customizable somehow. We might want to discuss features like this in #354

[kulakowka]

@okonet It can be customized.

[n1313]

I have the same kind of background in my project as well, but it's diagonally striped. This one is also good.

[n1313]

Although to be honest, I am not sure if this is going to be useful for most people. This feature is useful if you are working on some sort of a reusable UI component library which is supposed to work in unpredictable conditions on variety of backgrounds. I doubt this is what the majority of RSG users are building. I think the majority is targeting one environment with a specific background color, and so will have little use for this change, and even might be annoyed by it. I think this change could be a perfect cookbook example of how to customise your RSG, or an optional extension in the future, but I'm not 100% sold on it being in the main repo.

[sapegin]

Thanks for the pull request. I don’t think it’d be a good default. I agree with @n1313, would you mind sending a new pull request with a cookbook example?