Jeremy Elbourn ec6e7303dd perf: pngcrush all pngs (#28479) ...

This is the result of running
```sh
find ./ -iname "*.png" -exec pngcrush -brute -ow --  {} \;
```

[Summary of size reductions](https://docs.google.com/spreadsheets/d/12Qgx7DfKabWw0PJza6ozC1kCHTofi6wyBLWGtwLW7G4/preview)

Last done in July, 2017 in #18243

PR Close #28479

2019-02-01 13:56:02 -05:00

..

animations.png

perf: pngcrush all pngs (#28479)

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animations.svg

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augury.png

perf: pngcrush all pngs (#28479)

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augury.svg

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cdk.png

perf: pngcrush all pngs (#28479)

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cdk.svg

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cli.png

perf: pngcrush all pngs (#28479)

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cli.svg

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compiler.png

perf: pngcrush all pngs (#28479)

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compiler.svg

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components.png

perf: pngcrush all pngs (#28479)

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components.svg

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dependency-injection.png

perf: pngcrush all pngs (#28479)

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dependency-injection.svg

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forms.png

perf: pngcrush all pngs (#28479)

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forms.svg

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http.png

perf: pngcrush all pngs (#28479)

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http.svg

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i18n.png

perf: pngcrush all pngs (#28479)

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i18n.svg

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karma.png

perf: pngcrush all pngs (#28479)

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karma.svg

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labs.png

perf: pngcrush all pngs (#28479)

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labs.svg

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language-services.png

perf: pngcrush all pngs (#28479)

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language-services.svg

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lazy-loading.png

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lazy-loading.svg

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libraries.png

perf: pngcrush all pngs (#28479)

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libraries.svg

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material.png

perf: pngcrush all pngs (#28479)

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material.svg

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performance.png

perf: pngcrush all pngs (#28479)

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performance.svg

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protractor.png

perf: pngcrush all pngs (#28479)

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protractor.svg

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pwa.png

perf: pngcrush all pngs (#28479)

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pwa.svg

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router.png

perf: pngcrush all pngs (#28479)

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router.svg

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templates.png

perf: pngcrush all pngs (#28479)

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templates.svg

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universal.png

perf: pngcrush all pngs (#28479)

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universal.svg

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