{"action":"opened","issue":{"url":"https://api.github.com/repos/rey5137/material/issues/159","labels_url":"https://api.github.com/repos/rey5137/material/issues/159/labels{/name}","comments_url":"https://api.github.com/repos/rey5137/material/issues/159/comments","events_url":"https://api.github.com/repos/rey5137/material/issues/159/events","html_url":"https://github.com/rey5137/material/issues/159","id":89000675,"number":159,"title":"support backgroundTint style for old android API's","user":{"login":"fernandodev","id":3255250,"avatar_url":"https://avatars.githubusercontent.com/u/3255250?v=3","gravatar_id":"","url":"https://api.github.com/users/fernandodev","html_url":"https://github.com/fernandodev","followers_url":"https://api.github.com/users/fernandodev/followers","following_url":"https://api.github.com/users/fernandodev/following{/other_user}","gists_url":"https://api.github.com/users/fernandodev/gists{/gist_id}","starred_url":"https://api.github.com/users/fernandodev/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/fernandodev/subscriptions","organizations_url":"https://api.github.com/users/fernandodev/orgs","repos_url":"https://api.github.com/users/fernandodev/repos","events_url":"https://api.github.com/users/fernandodev/events{/privacy}","received_events_url":"https://api.github.com/users/fernandodev/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-06-17T12:13:13Z","updated_at":"2015-06-17T12:13:13Z","closed_at":null,"body":"Hi,\r\n\r\nThanks for sharing those awesome widgets! I suggest you (or might I'll do a PR for that) to use `AppCompatButton` for `backgroundTint` support. This view property works only in API 22.\r\n\r\nFor backward compatibility `Button extendsAppCompatButton` but it'll restrict library use because AppCompat widgets now have to be used in AppCompatActivies.\r\n\r\nTake a look on: [backgroundTint for older APIs](http://stackoverflow.com/questions/27735890/lollipops-backgroundtint-has-no-effect-on-a-button/29756195#29756195)"}}