diff --git a/app/src/main/java/io/legato/kazusa/help/update/AppReleaseInfo.kt b/app/src/main/java/io/legato/kazusa/help/update/AppReleaseInfo.kt
index 622c3e08e..a877f12ea 100644
--- a/app/src/main/java/io/legato/kazusa/help/update/AppReleaseInfo.kt
+++ b/app/src/main/java/io/legato/kazusa/help/update/AppReleaseInfo.kt
@@ -22,10 +22,6 @@ enum class AppVariant {
     ALL,
     UNKNOWN;
 
-    fun isBeta(): Boolean {
-        return this == BETA_RELEASE
-    }
-
 }
 
 @Keep
diff --git a/app/src/main/java/io/legato/kazusa/ui/book/explore/ExploreShowAdapter.kt b/app/src/main/java/io/legato/kazusa/ui/book/explore/ExploreShowAdapter.kt
index b7fcb41de..175dfa4f7 100644
--- a/app/src/main/java/io/legato/kazusa/ui/book/explore/ExploreShowAdapter.kt
+++ b/app/src/main/java/io/legato/kazusa/ui/book/explore/ExploreShowAdapter.kt
@@ -15,7 +15,6 @@ import io.legato.kazusa.help.config.AppConfig
 import io.legato.kazusa.ui.widget.text.AccentBgTextView
 import io.legato.kazusa.utils.dpToPx
 import io.legato.kazusa.utils.gone
-import io.legato.kazusa.utils.spToPx
 import io.legato.kazusa.utils.visible
 
 
diff --git a/app/src/main/java/io/legato/kazusa/ui/widget/text/AccentBgTextView.kt b/app/src/main/java/io/legato/kazusa/ui/widget/text/AccentBgTextView.kt
index 66de3a094..d85e9a581 100644
--- a/app/src/main/java/io/legato/kazusa/ui/widget/text/AccentBgTextView.kt
+++ b/app/src/main/java/io/legato/kazusa/ui/widget/text/AccentBgTextView.kt
@@ -3,14 +3,10 @@ package io.legato.kazusa.ui.widget.text
 import android.content.Context
 import android.util.AttributeSet
 import android.view.Gravity
-import com.google.android.material.color.MaterialColors
 import com.google.android.material.textview.MaterialTextView
-import io.legato.kazusa.R
 import io.legato.kazusa.lib.theme.Selector
 import io.legato.kazusa.utils.ColorUtils
 import io.legato.kazusa.utils.dpToPx
-import androidx.core.content.withStyledAttributes
-import io.legato.kazusa.utils.spToPx
 import io.legato.kazusa.utils.themeColor
 
 class AccentBgTextView @JvmOverloads constructor(