Added reverse portrait reader rotation

app/src/main/java/eu/kanade/tachiyomi/ui/reader/setting/OrientationType.kt

@@ -10,6 +10,7 @@ enum class OrientationType(val prefValue: Int, val flag: Int, @StringRes val str
     DEFAULT(0, ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED, R.string.label_default, R.drawable.ic_screen_rotation_24dp, 0x00000000),
     FREE(1, ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED, R.string.rotation_free, R.drawable.ic_screen_rotation_24dp, 0x00000008),
     PORTRAIT(2, ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT, R.string.rotation_portrait, R.drawable.ic_stay_current_portrait_24dp, 0x00000010),
+    REVERSE_PORTRAIT(6, ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT, R.string.rotation_reverse_portrait, R.drawable.ic_stay_current_portrait_24dp, 0x00000030),
     LANDSCAPE(3, ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE, R.string.rotation_landscape, R.drawable.ic_stay_current_landscape_24dp, 0x00000018),
     LOCKED_PORTRAIT(4, ActivityInfo.SCREEN_ORIENTATION_PORTRAIT, R.string.rotation_force_portrait, R.drawable.ic_screen_lock_portrait_24dp, 0x00000020),
     LOCKED_LANDSCAPE(5, ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE, R.string.rotation_force_landscape, R.drawable.ic_screen_lock_landscape_24dp, 0x00000028);

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsReaderController.kt

@@ -78,6 +78,7 @@ class SettingsReaderController : SettingsController() {
                 entriesRes = arrayOf(
                     R.string.rotation_free,
                     R.string.rotation_portrait,
+                    R.string.rotation_reverse_portrait,
                     R.string.rotation_landscape,
                     R.string.rotation_force_portrait,
                     R.string.rotation_force_landscape,

app/src/main/res/values/strings.xml

@@ -364,6 +364,7 @@
     <string name="rotation_type">Rotation type</string>
     <string name="rotation_free">Free</string>
     <string name="rotation_portrait">Portrait</string>
+    <string name="rotation_reverse_portrait">Reverse portrait</string>
     <string name="rotation_landscape">Landscape</string>
     <string name="rotation_force_portrait">Locked portrait</string>
     <string name="rotation_force_landscape">Locked landscape</string>