Summary:
Litho renders differently based on whether applicable accessibility services are enabled. In Flipper's accessibility mode this will be forced (with the option to turn it off) so that you don't have to be running an accessibility service to actually see what someone running an accessibility service would.
Here's an example video of what the re-rendering does (this also happens on toggle of accessibility mode, this is just the settings option to force it):
{F137856647}
Reviewed By: jknoxville
Differential Revision: D9667222
fbshipit-source-id: 292353d89f07734f1e525f795b1d7daf4130e203
Summary:
My benchmarks have shown react-emotion to be faster than the current implementation of `styled`. For this reason, I am converting all styling to [emotion](https://emotion.sh).
Benchmark results:
{F136839093}
The syntax is very similar between the two libraries. The main difference is that emotion only allows a single function for the whole style attribute, whereas the old implementation had functions for every style-attirbute.
Before:
```
{
color: props => props.color,
fontSize: props => props.size,
}
```
After:
```
props => ({
color: props.color,
fontSize: props.size,
})
```
Reviewed By: jknoxville
Differential Revision: D9479893
fbshipit-source-id: 2c39e4618f7e52ceacb67bbec8ae26114025723f
