Code deprecated note

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Kyle Niewiada 2017-02-25 10:23:40 -05:00 committed by GitHub
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Using the image dimensions are optional, but the [Google Structured Data Testing Tool](https://search.google.com/structured-data/testing-tool/u/0/) will consider the JSON-LD to have errors with certain types (i.e. BlogPosting) when an image does not have specified dimensions.
#### Deprecated image output
The older method for setting facebook image dimensions (shown below) is **no longer recommended**. It will continue work as intended, but is no longer the suggested procedure due to the lack of clarity in where these dimensions are assigned.
```yml
image:
facebook: /img/bad_facebook_example.png
height: 100
width: 100
```
### Setting a default image
You can define a default image using [Front Matter default](https://jekyllrb.com/docs/configuration/#front-matter-defaults), to provide a default Twitter Card or OGP image to all of your posts and pages.