Filter the sharing display classes.
jetpack_sharing_display_classes
jetpack_sharing_display_classes-
filter -
filter jetpack_sharing_display_queryFilter the sharing display query.
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filter jetpack_sharing_display_linkFilter the sharing display link.
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filter sharing_display_linkFilter the sharing display link.
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filter jetpack_sharing_display_idFilter the sharing display ID.
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filter sharing_titleFilter the sharing title.
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filter sharing_permalinkFilter the sharing permalink.
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filter jetpack_open_sharing_in_new_windowFilter the way sharing links open. By default, sharing links open in a new window.
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action end_sharing_meta_box_contentFires after the sharing meta box content.
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action start_sharing_meta_box_contentFires before the sharing meta box content.
Jetpack Developer Resources 