Bourbon aims to provide support for CSS3 properties that are not yet fully supported in modern stable browsers.
A general rule when submitting a pull request for a new mixin, ask yourself the following: Do the following browsers only support the CSS3 properties using vendor specific prefixes?
If the answer is yes, there is a high chance the mixin will be accepted via a pull request.
Bourbon does not intend to support IE filters.
Resources for checking browser support:
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