diff --git a/app/src/main/java/jp/juggler/subwaytooter/ActMain.kt b/app/src/main/java/jp/juggler/subwaytooter/ActMain.kt
index 2814e99a..1a7b9b2b 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/ActMain.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/ActMain.kt
@@ -75,6 +75,7 @@ class ActMain : AppCompatActivity(),
         var screenBottomPadding = 0
         var timelineFont: Typeface = Typeface.DEFAULT
         var timeline_font_bold: Typeface = Typeface.DEFAULT_BOLD
+        var eventFadeAlpha = 1f
     }
 
     // アプリ設定のキャッシュ
diff --git a/app/src/main/java/jp/juggler/subwaytooter/actmain/ActMainStyle.kt b/app/src/main/java/jp/juggler/subwaytooter/actmain/ActMainStyle.kt
index 7c63addc..19e0e6a9 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/actmain/ActMainStyle.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/actmain/ActMainStyle.kt
@@ -75,6 +75,12 @@ fun ActMain.reloadIconSize() {
     ActMain.headerIconSize = parseIconSize(PrefS.spHeaderIconSize)
     ActMain.stripIconSize = parseIconSize(PrefS.spStripIconSize)
     ActMain.screenBottomPadding = parseIconSize(PrefS.spScreenBottomPadding, minDp = 0f)
+
+    ActMain.eventFadeAlpha = PrefS.spEventTextAlpha()
+        .toFloatOrNull()
+        ?.takeIf{ it.isFinite()}
+        ?.clip(0f,1f)
+        ?: 1f
 }
 
 // initUIから呼ばれる
diff --git a/app/src/main/java/jp/juggler/subwaytooter/appsetting/AppSettingItem.kt b/app/src/main/java/jp/juggler/subwaytooter/appsetting/AppSettingItem.kt
index e174da2f..f7452880 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/appsetting/AppSettingItem.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/appsetting/AppSettingItem.kt
@@ -787,6 +787,8 @@ val appSettingRoot = AppSettingItem(null, SettingType.Section, R.string.app_sett
         sw(PrefB.bpUseTwemoji, R.string.use_twemoji_emoji)
 
         sw(PrefB.bpKeepReactionSpace, R.string.keep_reaction_space)
+
+        text(PrefS.spEventTextAlpha, R.string.event_text_alpha, InputTypeEx.numberDecimal)
     }
 
     section(R.string.color) {
diff --git a/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderPreviewCard.kt b/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderPreviewCard.kt
index 10f39093..c29ad046 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderPreviewCard.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderPreviewCard.kt
@@ -1,6 +1,7 @@
 package jp.juggler.subwaytooter.itemviewholder
 
 import android.view.View
+import jp.juggler.subwaytooter.ActMain
 import jp.juggler.subwaytooter.R
 import jp.juggler.subwaytooter.api.entity.TootStatus
 import jp.juggler.subwaytooter.column.ColumnType
@@ -45,7 +46,7 @@ private fun addLinkAndCaption(
     }
 }
 
-fun ItemViewHolder.showPreviewCard(status: TootStatus) {
+fun ItemViewHolder.showPreviewCard(status: TootStatus, fadeText: Boolean) {
 
     if (PrefB.bpDontShowPreviewCard(activity.pref)) return
 
@@ -73,6 +74,12 @@ fun ItemViewHolder.showPreviewCard(status: TootStatus) {
                 tvCardText.visibility = View.VISIBLE
                 tvCardText.text = text
                 bShowOuter = true
+
+                val fadeAlpha = ActMain.eventFadeAlpha
+                if (fadeAlpha < 1f) {
+                    val a = if (fadeText) fadeAlpha else 1f
+                    tvCardText.alpha = a
+                }
             }
         }
     }
diff --git a/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowNotification.kt b/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowNotification.kt
index a1b6d739..39eb31cf 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowNotification.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowNotification.kt
@@ -2,7 +2,6 @@ package jp.juggler.subwaytooter.itemviewholder
 
 import android.view.Gravity
 import android.view.View
-import jp.juggler.subwaytooter.pref.PrefI
 import jp.juggler.subwaytooter.R
 import jp.juggler.subwaytooter.Styler
 import jp.juggler.subwaytooter.actmain.addColumn
@@ -12,6 +11,7 @@ import jp.juggler.subwaytooter.api.entity.TootNotification
 import jp.juggler.subwaytooter.api.entity.TootReaction
 import jp.juggler.subwaytooter.api.entity.TootStatus
 import jp.juggler.subwaytooter.column.ColumnType
+import jp.juggler.subwaytooter.pref.PrefI
 import jp.juggler.util.notZero
 import org.jetbrains.anko.backgroundColor
 
@@ -68,29 +68,53 @@ fun ItemViewHolder.showNotification(n: TootNotification) {
     }
 }
 
-private fun ItemViewHolder.showNotificationFollow(n: TootNotification, nAccountRef: TootAccountRef?) {
+private fun ItemViewHolder.showNotificationFollow(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?
+) {
     val colorBg = PrefI.ipEventBgColorFollow(activity.pref)
     colorBg.notZero()?.let { viewRoot.backgroundColor = it }
     nAccountRef?.let {
-        showBoost(it, n.time_created_at, R.drawable.ic_follow_plus, R.string.display_name_followed_by)
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_follow_plus,
+            R.string.display_name_followed_by
+        )
         showAccount(it)
     }
 }
 
-private fun ItemViewHolder.showNotificationUnfollow(n: TootNotification, nAccountRef: TootAccountRef?) {
+private fun ItemViewHolder.showNotificationUnfollow(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?
+) {
     val colorBg = PrefI.ipEventBgColorUnfollow(activity.pref)
     colorBg.notZero()?.let { viewRoot.backgroundColor = it }
     nAccountRef?.let {
-        showBoost(it, n.time_created_at, R.drawable.ic_follow_cross, R.string.display_name_unfollowed_by)
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_follow_cross,
+            R.string.display_name_unfollowed_by
+        )
         showAccount(it)
     }
 }
 
-private fun ItemViewHolder.showNotificationFollowRequest(n: TootNotification, nAccountRef: TootAccountRef?) {
+private fun ItemViewHolder.showNotificationFollowRequest(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?
+) {
     val colorBg = PrefI.ipEventBgColorFollowRequest(activity.pref)
     colorBg.notZero()?.let { viewRoot.backgroundColor = it }
     nAccountRef?.let {
-        showBoost(it, n.time_created_at, R.drawable.ic_follow_wait, R.string.display_name_follow_request_by)
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_follow_wait,
+            R.string.display_name_follow_request_by
+        )
         showAccount(it)
     }
     boostedAction = {
@@ -98,16 +122,28 @@ private fun ItemViewHolder.showNotificationFollowRequest(n: TootNotification, nA
     }
 }
 
-private fun ItemViewHolder.showNotificationFollowRequestAccepted(n: TootNotification, nAccountRef: TootAccountRef?) {
+private fun ItemViewHolder.showNotificationFollowRequestAccepted(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?
+) {
     val colorBg = PrefI.ipEventBgColorFollow(activity.pref)
     colorBg.notZero()?.let { viewRoot.backgroundColor = it }
     nAccountRef?.let {
-        showBoost(it, n.time_created_at, R.drawable.ic_follow_plus, R.string.display_name_follow_request_accepted_by)
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_follow_plus,
+            R.string.display_name_follow_request_accepted_by
+        )
         showAccount(it)
     }
 }
 
-private fun ItemViewHolder.showNotificationPost(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
+private fun ItemViewHolder.showNotificationPost(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
     val colorBg = PrefI.ipEventBgColorStatus(activity.pref)
     val iconId = when (nStatus) {
         null -> R.drawable.ic_question
@@ -117,7 +153,11 @@ private fun ItemViewHolder.showNotificationPost(n: TootNotification, nAccountRef
     nStatus?.let { showNotificationStatus(it, colorBg) }
 }
 
-private fun ItemViewHolder.showNotificationReaction(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
+private fun ItemViewHolder.showNotificationReaction(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
     val colorBg = PrefI.ipEventBgColorReaction(activity.pref)
     nAccountRef?.let {
         showBoost(
@@ -131,16 +171,24 @@ private fun ItemViewHolder.showNotificationReaction(n: TootNotification, nAccoun
     nStatus?.let { showNotificationStatus(it, colorBg) }
 }
 
-private fun ItemViewHolder.showNotificationFavourite(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
+private fun ItemViewHolder.showNotificationFavourite(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
     nAccountRef?.let {
         val iconId = if (accessInfo.isNicoru(it.get())) R.drawable.ic_nicoru else R.drawable.ic_star
         showBoost(it, n.time_created_at, iconId, R.string.display_name_favourited_by)
     }
     val colorBg = PrefI.ipEventBgColorFavourite(activity.pref)
-    nStatus?.let { showNotificationStatus(it, colorBg) }
+    nStatus?.let { showNotificationStatus(it, colorBg, fadeText = true) }
 }
 
-private fun ItemViewHolder.showNotificationReblog(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
+private fun ItemViewHolder.showNotificationReblog(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
     nAccountRef?.let {
         showBoost(
             it,
@@ -152,19 +200,33 @@ private fun ItemViewHolder.showNotificationReblog(n: TootNotification, nAccountR
         )
     }
     val colorBg = PrefI.ipEventBgColorBoost(activity.pref)
-    nStatus?.let { showNotificationStatus(it, colorBg) }
+    nStatus?.let { showNotificationStatus(it, colorBg, fadeText = true) }
 }
 
-private fun ItemViewHolder.showNotificationRenote(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
+private fun ItemViewHolder.showNotificationRenote(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
     // 引用のないreblog
     nAccountRef?.let {
-        showBoost(it, n.time_created_at, R.drawable.ic_repeat, R.string.display_name_boosted_by, boostStatus = nStatus)
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_repeat,
+            R.string.display_name_boosted_by,
+            boostStatus = nStatus
+        )
     }
     val colorBg = PrefI.ipEventBgColorBoost(activity.pref)
     nStatus?.let { showNotificationStatus(it, colorBg) }
 }
 
-private fun ItemViewHolder.showNotificationMention(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
+private fun ItemViewHolder.showNotificationMention(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
     // メンション通知に「～～からの返信」を表示するカラムなのかどうか
     fun willShowReplyInfo(status: TootStatus?): Boolean = when {
         // メンションではなく返信の場合、トゥート内部に「～への返信」を表示するので
@@ -176,34 +238,85 @@ private fun ItemViewHolder.showNotificationMention(n: TootNotification, nAccount
     }
 
     if (willShowReplyInfo(nStatus)) {
-        nAccountRef?.let { showBoost(it, n.time_created_at, R.drawable.ic_reply, R.string.display_name_mentioned_by) }
+        nAccountRef?.let {
+            showBoost(
+                it,
+                n.time_created_at,
+                R.drawable.ic_reply,
+                R.string.display_name_mentioned_by
+            )
+        }
     }
 
     val colorBg = PrefI.ipEventBgColorMention(activity.pref)
     nStatus?.let { showNotificationStatus(it, colorBg) }
 }
 
-private fun ItemViewHolder.showNotificationQuote(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
-    nAccountRef?.let { showBoost(it, n.time_created_at, R.drawable.ic_repeat, R.string.display_name_quoted_by) }
+private fun ItemViewHolder.showNotificationQuote(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
+    nAccountRef?.let {
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_repeat,
+            R.string.display_name_quoted_by
+        )
+    }
 
     val colorBg = PrefI.ipEventBgColorQuote(activity.pref)
     nStatus?.let { showNotificationStatus(it, colorBg) }
 }
 
-private fun ItemViewHolder.showNotificationVote(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
-    nAccountRef?.let { showBoost(it, n.time_created_at, R.drawable.ic_vote, R.string.display_name_voted_by) }
+private fun ItemViewHolder.showNotificationVote(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
+    nAccountRef?.let {
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_vote,
+            R.string.display_name_voted_by
+        )
+    }
     val colorBg = PrefI.ipEventBgColorVote(activity.pref)
     nStatus?.let { showNotificationStatus(it, colorBg) }
 }
 
-private fun ItemViewHolder.showNotificationPoll(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
-    nAccountRef?.let { showBoost(it, n.time_created_at, R.drawable.ic_vote, R.string.end_of_polling_from) }
+private fun ItemViewHolder.showNotificationPoll(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
+    nAccountRef?.let {
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_vote,
+            R.string.end_of_polling_from
+        )
+    }
     val colorBg = 0
     nStatus?.let { showNotificationStatus(it, colorBg) }
 }
 
-private fun ItemViewHolder.showNotificationUnknown(n: TootNotification, nAccountRef: TootAccountRef?, nStatus: TootStatus?) {
-    nAccountRef?.let { showBoost(it, n.time_created_at, R.drawable.ic_question, R.string.unknown_notification_from) }
+private fun ItemViewHolder.showNotificationUnknown(
+    n: TootNotification,
+    nAccountRef: TootAccountRef?,
+    nStatus: TootStatus?
+) {
+    nAccountRef?.let {
+        showBoost(
+            it,
+            n.time_created_at,
+            R.drawable.ic_question,
+            R.string.unknown_notification_from
+        )
+    }
     val colorBg = 0
     nStatus?.let { showNotificationStatus(it, colorBg) }
 
@@ -212,21 +325,25 @@ private fun ItemViewHolder.showNotificationUnknown(n: TootNotification, nAccount
     tvMessageHolder.gravity = Gravity.CENTER
 }
 
-private fun ItemViewHolder.showNotificationStatus(item: TootStatus, colorBgDefault: Int) {
+private fun ItemViewHolder.showNotificationStatus(
+    item: TootStatus,
+    colorBgDefault: Int,
+    fadeText: Boolean = false
+) {
     val reblog = item.reblog
     when {
-        reblog == null -> showStatusOrReply(item, colorBgDefault)
+        reblog == null -> showStatusOrReply(item, colorBgDefault, fadeText = fadeText)
 
         item.isQuoteToot -> {
             // 引用Renote
             showReply(reblog, R.drawable.ic_repeat, R.string.quote_to)
-            showStatus(item, PrefI.ipEventBgColorQuote(activity.pref))
+            showStatus(item, PrefI.ipEventBgColorQuote(activity.pref), fadeText = fadeText)
         }
 
         else -> {
             // 通常のブースト。引用なしブースト。
             // ブースト表示は通知イベントと被るのでしない
-            showStatusOrReply(reblog, PrefI.ipEventBgColorBoost(activity.pref))
+            showStatusOrReply(reblog, PrefI.ipEventBgColorBoost(activity.pref), fadeText = fadeText)
         }
     }
 }
diff --git a/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowStatus.kt b/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowStatus.kt
index 60f3c847..5dcbce36 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowStatus.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/itemviewholder/ItemViewHolderShowStatus.kt
@@ -4,6 +4,7 @@ import android.text.Spannable
 import android.text.SpannableStringBuilder
 import android.view.View
 import android.widget.ImageView
+import jp.juggler.subwaytooter.ActMain
 import jp.juggler.subwaytooter.R
 import jp.juggler.subwaytooter.Styler
 import jp.juggler.subwaytooter.actmain.checkAutoCW
@@ -20,7 +21,11 @@ import jp.juggler.util.*
 import org.jetbrains.anko.backgroundColor
 import org.jetbrains.anko.textColor
 
-fun ItemViewHolder.showStatusOrReply(item: TootStatus, colorBgArg: Int = 0) {
+fun ItemViewHolder.showStatusOrReply(
+    item: TootStatus,
+    colorBgArg: Int = 0,
+    fadeText: Boolean = false
+) {
     var colorBg = colorBgArg
     val reply = item.reply
     val inReplyToId = item.in_reply_to_id
@@ -36,10 +41,14 @@ fun ItemViewHolder.showStatusOrReply(item: TootStatus, colorBgArg: Int = 0) {
             if (colorBgArg == 0) colorBg = PrefI.ipEventBgColorMention(activity.pref)
         }
     }
-    showStatus(item, colorBg)
+    showStatus(item, colorBg, fadeText = fadeText)
 }
 
-fun ItemViewHolder.showStatus(status: TootStatus, colorBg: Int = 0) {
+fun ItemViewHolder.showStatus(
+    status: TootStatus,
+    colorBg: Int = 0,
+    fadeText: Boolean = false
+) {
 
     val filteredWord = status.filteredWord
     if (filteredWord != null) {
@@ -115,6 +124,15 @@ fun ItemViewHolder.showStatus(status: TootStatus, colorBg: Int = 0) {
     //				tvTags.setText( status.decoded_tags );
     //			}
 
+    val fadeAlpha = ActMain.eventFadeAlpha
+    if (fadeAlpha < 1f) {
+        val a = if (fadeText) fadeAlpha else 1f
+        tvMentions.alpha = a
+        tvContentWarning.alpha = a
+        tvContent.alpha = a
+        tvApplication.alpha = a
+    }
+
     if (status.decoded_mentions.isEmpty()) {
         tvMentions.visibility = View.GONE
     } else {
@@ -129,7 +147,7 @@ fun ItemViewHolder.showStatus(status: TootStatus, colorBg: Int = 0) {
     val r = status.auto_cw
     tvContent.minLines = r?.originalLineCount ?: -1
 
-    showPreviewCard(status)
+    showPreviewCard(status, fadeText = fadeText)
     showSpoilerTextAndContent(status)
     showAttachments(status)
     makeReactionsView(status)
diff --git a/app/src/main/java/jp/juggler/subwaytooter/pref/PrefS.kt b/app/src/main/java/jp/juggler/subwaytooter/pref/PrefS.kt
index c575182a..152b1c1c 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/pref/PrefS.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/pref/PrefS.kt
@@ -49,4 +49,6 @@ object PrefS {
     // val spWebBrowser = StringPref("WebBrowser", "")
 
     val spTimelineSpacing = StringPref("TimelineSpacing", "")
+
+    val spEventTextAlpha = StringPref("EventTextAlpha", "")
 }
\ No newline at end of file
diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index ce8f523f..95515ba1 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -1107,4 +1107,5 @@
     <string name="url_parse_failed">URLの指定が変です</string>
     <string name="url_of_user_or_status">ユーザや投稿のURL</string>
     <string name="unbookmark">ブックマーク解除</string>
+    <string name="event_text_alpha">一部の通知の本文アルファ値(0.0～1.0, デフォルト:1)</string>
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 61b1d350..7682afb6 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1118,4 +1118,5 @@
     <string name="url_of_user_or_status">URL of user or status</string>
     <string name="url_parse_failed">parse error.</string>
     <string name="unbookmark">Unbookmark</string>
+    <string name="event_text_alpha">Text alpha value for some notifications (0.0～1.0, default:1)</string>
 </resources>