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remove-sidebar-extension / src / main / resources / atlassian-plugin.xml

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<atlassian-plugin key="${project.groupId}.${project.artifactId}" name="${project.name}" plugins-version="2">
    <plugin-info>
        <description>${project.description}</description>
        <version>${project.version}</version>
        <vendor name="${project.organization.name}" url="${project.organization.url}" />
    </plugin-info>

    <scoped-web-resource key="annotate">
        <resource type="download" name="remove-sidebar.css" location="css/remove-sidebar.css" />
        <context>page</context>
        <context>blogpost</context>
    </scoped-web-resource>
</atlassian-plugin>