diff --git a/app/src/main/java/jp/juggler/subwaytooter/span/NetworkEmojiSpan.kt b/app/src/main/java/jp/juggler/subwaytooter/span/NetworkEmojiSpan.kt
index 33f69cf5..e4c37fae 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/span/NetworkEmojiSpan.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/span/NetworkEmojiSpan.kt
@@ -13,7 +13,10 @@ import jp.juggler.subwaytooter.Pref
 import jp.juggler.subwaytooter.util.LogCategory
 import java.lang.ref.WeakReference
 
-class NetworkEmojiSpan internal constructor(private val url : String) : ReplacementSpan(),AnimatableSpan {
+class NetworkEmojiSpan internal constructor(
+	private val url : String,
+	private val scale : Float = 1f
+) : ReplacementSpan(),AnimatableSpan {
 	
 	companion object {
 		
@@ -54,8 +57,7 @@ class NetworkEmojiSpan internal constructor(private val url : String) : Replacem
 		@IntRange(from = 0) end : Int,
 		fm : Paint.FontMetricsInt?
 	) : Int {
-		val size = (0.5f + scale_ratio * paint.textSize).toInt()
-		
+		val size = (paint.textSize * scale_ratio * scale + 0.5f).toInt()
 		if(fm != null) {
 			val c_descent = (0.5f + size * descent_ratio).toInt()
 			val c_ascent = c_descent - size
@@ -111,7 +113,7 @@ class NetworkEmojiSpan internal constructor(private val url : String) : Replacem
 		rect_src.set(0, 0, srcWidth, srcHeight )
 
 		// 絵文字の正方形のサイズ
-		val dstSize = scale_ratio * textPaint.textSize
+		val dstSize = textPaint.textSize * scale_ratio * scale
 
 		// ベースラインから上下方向にずらすオフセット
 		val c_descent = dstSize * descent_ratio
diff --git a/app/src/main/java/jp/juggler/subwaytooter/util/CustomEmojiLister.kt b/app/src/main/java/jp/juggler/subwaytooter/util/CustomEmojiLister.kt
index 0bfead71..62b28c8a 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/util/CustomEmojiLister.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/util/CustomEmojiLister.kt
@@ -3,20 +3,15 @@ package jp.juggler.subwaytooter.util
 import android.content.Context
 import android.os.Handler
 import android.os.SystemClock
-
-import java.util.ArrayList
-import java.util.concurrent.ConcurrentHashMap
-import java.util.concurrent.ConcurrentLinkedQueue
-
 import jp.juggler.subwaytooter.App1
 import jp.juggler.subwaytooter.api.TootApiClient
 import jp.juggler.subwaytooter.api.entity.CustomEmoji
-import jp.juggler.subwaytooter.api.entity.TootInstance
-import jp.juggler.subwaytooter.api.entity.parseItem
 import jp.juggler.subwaytooter.api.entity.parseList
 import okhttp3.RequestBody
 import org.json.JSONObject
-import java.util.HashMap
+import java.util.*
+import java.util.concurrent.ConcurrentHashMap
+import java.util.concurrent.ConcurrentLinkedQueue
 
 class CustomEmojiLister(internal val context : Context) {
 	
diff --git a/app/src/main/java/jp/juggler/subwaytooter/util/DecodeOptions.kt b/app/src/main/java/jp/juggler/subwaytooter/util/DecodeOptions.kt
index 1c2fa40c..f5645a3f 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/util/DecodeOptions.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/util/DecodeOptions.kt
@@ -20,7 +20,8 @@ class DecodeOptions(
 	var emojiMapCustom : HashMap<String, CustomEmoji>? = null,
 	var emojiMapProfile : HashMap<String, NicoProfileEmoji>? = null,
 	var highlightTrie : WordTrieTree? = null,
-	var unwrapEmojiImageTag :Boolean = false
+	var unwrapEmojiImageTag :Boolean = false,
+	var enlargeCustomEmoji :Float = 1f
 ) {
 	
 	internal fun isMediaAttachment(url : String?) : Boolean {
diff --git a/app/src/main/java/jp/juggler/subwaytooter/util/EmojiDecoder.kt b/app/src/main/java/jp/juggler/subwaytooter/util/EmojiDecoder.kt
index 1931f25c..cbb030cd 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/util/EmojiDecoder.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/util/EmojiDecoder.kt
@@ -106,7 +106,7 @@ object EmojiDecoder {
 			sb.append(text)
 			val end = sb.length
 			sb.setSpan(
-				NetworkEmojiSpan(url),
+				NetworkEmojiSpan(url,scale = options.enlargeCustomEmoji),
 				start,
 				end,
 				Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
diff --git a/app/src/main/java/jp/juggler/subwaytooter/util/MisskeyMarkdownDecoder.kt b/app/src/main/java/jp/juggler/subwaytooter/util/MisskeyMarkdownDecoder.kt
index 701054c4..f5e887da 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/util/MisskeyMarkdownDecoder.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/util/MisskeyMarkdownDecoder.kt
@@ -970,7 +970,10 @@ object MisskeyMarkdownDecoder {
 	// このファイルのエントリーポイント
 	fun decodeMarkdown(options : DecodeOptions, src : String?) =
 		SpannableStringBuilderEx().apply {
+			val save = options.enlargeCustomEmoji
+			options.enlargeCustomEmoji = 2.5f
 			try {
+				
 				val env = SpanOutputEnv(options, this)
 				
 				if(src != null) ParseEnv(src).parse { node ->
@@ -990,6 +993,8 @@ object MisskeyMarkdownDecoder {
 			} catch(ex : Throwable) {
 				log.trace(ex)
 				log.e(ex, "decodeMarkdown failed")
+			}finally {
+				options.enlargeCustomEmoji = save
 			}
 		}
 }