TSUMahmud

Hi, I notice in class `io/github/hidroh/materialistic/Application.java`, you have the following code where you used `StrictMode `class which is introduced in API version = 28. (See this [link](https://developer.android.com/sdk/api_diff/28/changes/changes-summary)). ``` StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()...

Hi, I notice in class com/quaap/launchtime/ColorSettingsActivity.java you have overriden function `isValidFragment()`, which is added to the class android.preference.PreferenceActivity in API version = 19. (See this [link](https://developer.android.com/sdk/api_diff/19/changes/android.preference.PreferenceActivity)). Class ColorSettingsActivity directly extends...