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Play with typography and colors to generate a design system theme you can use in your React projects, compatible with Theme UI, Styled System, Rebass, Chakra UI and Tachyons.
![Design System Playground](https://ph-files.imgix.net/df904156-9311-4e95-82f3-f95b08aeda96.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
Design System Playground
Play with fonts and colors to generate a design system theme
![John Polacek](https://ph-avatars.imgix.net/101097/original.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
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Chicago Tech Events
Discover the best web, tech and startup events in Chicago
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John Polacek
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If you are doing complex scroll-based animations, ScrollMagic is your go-to. When I created Scrollorama a few years ago, it was the first such library. @janpaepke came along and started making such great contributions that I made him an author.
When he told me that he was doing a complete rewrite and launching a new version rebranded as ScrollMagic, you might think I would be bummed, but the...
![ScrollMagic](https://ph-files.imgix.net/550cbf7b-5c2f-4f96-b133-7db650defec0.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
ScrollMagic
The jQuery plugin for magical scroll interactions.
![John Polacek](https://ph-avatars.imgix.net/101097/original.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
John Polacek
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I use SpotHero in Chicago. No problems ever with the service. One time I made an error in booking and it was easy to fix with their help desk chat. I even got some credits by referring friends. I can't offer any comparisons to other parking apps, as I have not felt the need or urge to try any of them.
![SpotHero](https://ph-files.imgix.net/4b9a09fe-4d29-45c5-b9d5-fce636e9e7a7.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
SpotHero
On-demand parking app
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![Responsivator](https://ph-files.imgix.net/8deab1e0-86d4-4d2b-850f-a7eb308bd7f7.png?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=48&h=48&fit=crop&frame=1)
Responsivator
View & share how sites look at different screen sizes