{"action":"created","issue":{"url":"https://api.github.com/repos/Polymer/polymer/issues/2740","labels_url":"https://api.github.com/repos/Polymer/polymer/issues/2740/labels{/name}","comments_url":"https://api.github.com/repos/Polymer/polymer/issues/2740/comments","events_url":"https://api.github.com/repos/Polymer/polymer/issues/2740/events","html_url":"https://github.com/Polymer/polymer/issues/2740","id":117008589,"number":2740,"title":"Using custom properties in mixins","user":{"login":"David-Mulder","id":46602,"avatar_url":"https://avatars.githubusercontent.com/u/46602?v=3","gravatar_id":"","url":"https://api.github.com/users/David-Mulder","html_url":"https://github.com/David-Mulder","followers_url":"https://api.github.com/users/David-Mulder/followers","following_url":"https://api.github.com/users/David-Mulder/following{/other_user}","gists_url":"https://api.github.com/users/David-Mulder/gists{/gist_id}","starred_url":"https://api.github.com/users/David-Mulder/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/David-Mulder/subscriptions","organizations_url":"https://api.github.com/users/David-Mulder/orgs","repos_url":"https://api.github.com/users/David-Mulder/repos","events_url":"https://api.github.com/users/David-Mulder/events{/privacy}","received_events_url":"https://api.github.com/users/David-Mulder/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2015-11-15T18:05:32Z","updated_at":"2015-11-18T22:14:59Z","closed_at":null,"body":"I have read through all open issues about mixins, but I can't find anything about the fact that custom properties do not seem to work in mixins.\r\n\r\nAnd before you criticize this isn't necessary (as someone else did):\r\n\r\n 1. It doesn't make sense from a usage point of view that they behave differently\r\n 2. Let me give en example where I need it, I have a `<paper-datatable>` with checkboxes in it ( http://david-mulder.github.io/paper-datatable/components/paper-datatable/demo/theming.html ). If I next wish to allow the user to change only the `<paper-checkbox>` in the header I would have to expose custom variables for every variable of `<paper-checkbox>`"},"comment":{"url":"https://api.github.com/repos/Polymer/polymer/issues/comments/157881913","html_url":"https://github.com/Polymer/polymer/issues/2740#issuecomment-157881913","issue_url":"https://api.github.com/repos/Polymer/polymer/issues/2740","id":157881913,"user":{"login":"azakus","id":46725,"avatar_url":"https://avatars.githubusercontent.com/u/46725?v=3","gravatar_id":"","url":"https://api.github.com/users/azakus","html_url":"https://github.com/azakus","followers_url":"https://api.github.com/users/azakus/followers","following_url":"https://api.github.com/users/azakus/following{/other_user}","gists_url":"https://api.github.com/users/azakus/gists{/gist_id}","starred_url":"https://api.github.com/users/azakus/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/azakus/subscriptions","organizations_url":"https://api.github.com/users/azakus/orgs","repos_url":"https://api.github.com/users/azakus/repos","events_url":"https://api.github.com/users/azakus/events{/privacy}","received_events_url":"https://api.github.com/users/azakus/received_events","type":"User","site_admin":false},"created_at":"2015-11-18T22:14:59Z","updated_at":"2015-11-18T22:14:59Z","body":"Sorry, I'm not sure what you mean by custom properties \"don't seem to work\" in mixins.\r\n\r\nCan you post a small JSBin sample that points out what you mean?"}}