テーマ:https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/core/res/res/values/themes.xml スタイル:https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/core/res/res/values/styles.xml レイアウト:https://android.googlesource.com/platform/frameworks/base/+/refs/heads/master/core/res/res/layout/ 命名規則:https://qiita.com/Reyurnible/items/2de397b80391189af8e4 デバッグ:https://qiita.com/FumihikoSHIROYAMA/items/e3159103ba2fba07e063