diff --git a/CHANGELOG.md b/CHANGELOG.md
index a53d506ef5..a17c9c231b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,11 +39,14 @@
 - Fix: ロールタイムラインにて全ての投稿が流れてしまう問題の修正
 - Fix: 「アクセストークンの管理」画面でアプリの情報が表示されない問題の修正
 - Fix: Firefoxにおける絵文字ピッカーのTabキーフォーカス問題の修正
+- Fix: フォローボタンがテーマのカラースキームによって視認性が悪くなる問題を修正
+  - 新しいプロパティ `fgOnWhite` が追加されました
 
 ### Server
 - bullをbull-mqにアップグレードし、ジョブキューのパフォーマンスを改善
 - ストリーミングのパフォーマンスを改善
 - Fix: お知らせの画像URLを空にできない問題を修正
+- Fix: i/notificationsのsinceIdが機能しない問題を修正
 
 ## 13.12.2
 
diff --git a/packages/backend/src/server/api/endpoints/i/notifications.ts b/packages/backend/src/server/api/endpoints/i/notifications.ts
index e141be764a..f5662f4a0e 100644
--- a/packages/backend/src/server/api/endpoints/i/notifications.ts
+++ b/packages/backend/src/server/api/endpoints/i/notifications.ts
@@ -91,18 +91,18 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 			const includeTypes = ps.includeTypes && ps.includeTypes.filter(type => !(obsoleteNotificationTypes).includes(type as any)) as typeof notificationTypes[number][];
 			const excludeTypes = ps.excludeTypes && ps.excludeTypes.filter(type => !(obsoleteNotificationTypes).includes(type as any)) as typeof notificationTypes[number][];
 
-			const limit = ps.limit + (ps.untilId ? 1 : 0); // untilIdに指定したものも含まれるため+1
+			const limit = ps.limit + (ps.untilId ? 1 : 0) + (ps.sinceId ? 1 : 0); // untilIdに指定したものも含まれるため+1
 			const notificationsRes = await this.redisClient.xrevrange(
 				`notificationTimeline:${me.id}`,
 				ps.untilId ? this.idService.parse(ps.untilId).date.getTime() : '+',
-				'-',
+				ps.sinceId ? this.idService.parse(ps.sinceId).date.getTime() : '-',
 				'COUNT', limit);
 
 			if (notificationsRes.length === 0) {
 				return [];
 			}
 
-			let notifications = notificationsRes.map(x => JSON.parse(x[1][1])).filter(x => x.id !== ps.untilId) as Notification[];
+			let notifications = notificationsRes.map(x => JSON.parse(x[1][1])).filter(x => x.id !== ps.untilId && x !== ps.sinceId) as Notification[];
 
 			if (includeTypes && includeTypes.length > 0) {
 				notifications = notifications.filter(notification => includeTypes.includes(notification.type));
diff --git a/packages/frontend/src/components/MkFollowButton.vue b/packages/frontend/src/components/MkFollowButton.vue
index c4e13441e0..b732fbb2b9 100644
--- a/packages/frontend/src/components/MkFollowButton.vue
+++ b/packages/frontend/src/components/MkFollowButton.vue
@@ -131,8 +131,7 @@ onBeforeUnmount(() => {
 	position: relative;
 	display: inline-block;
 	font-weight: bold;
-	color: var(--accent);
-	background: transparent;
+	color: var(--fgOnWhite);
 	border: solid 1px var(--accent);
 	padding: 0;
 	height: 31px;
diff --git a/packages/frontend/src/themes/_dark.json5 b/packages/frontend/src/themes/_dark.json5
index ea93231a0b..993a627d7f 100644
--- a/packages/frontend/src/themes/_dark.json5
+++ b/packages/frontend/src/themes/_dark.json5
@@ -20,7 +20,8 @@
 		fgTransparentWeak: ':alpha<0.75<@fg',
 		fgTransparent: ':alpha<0.5<@fg',
 		fgHighlighted: ':lighten<3<@fg',
-		fgOnAccent: '#000',
+		fgOnAccent: '#fff',
+		fgOnWhite: '#333',
 		divider: 'rgba(255, 255, 255, 0.1)',
 		indicator: '@accent',
 		panel: ':lighten<3<@bg',
diff --git a/packages/frontend/src/themes/_light.json5 b/packages/frontend/src/themes/_light.json5
index 603b50ffc1..3ccca72692 100644
--- a/packages/frontend/src/themes/_light.json5
+++ b/packages/frontend/src/themes/_light.json5
@@ -21,6 +21,7 @@
 		fgTransparent: ':alpha<0.5<@fg',
 		fgHighlighted: ':darken<3<@fg',
 		fgOnAccent: '#fff',
+		fgOnWhite: '#333',
 		divider: 'rgba(0, 0, 0, 0.1)',
 		indicator: '@accent',
 		panel: ':lighten<3<@bg',
diff --git a/packages/frontend/src/themes/d-astro.json5 b/packages/frontend/src/themes/d-astro.json5
index c6a927ec3a..09a9ead1a2 100644
--- a/packages/frontend/src/themes/d-astro.json5
+++ b/packages/frontend/src/themes/d-astro.json5
@@ -53,6 +53,7 @@
 		panelHeaderBg: ':lighten<3<@panel',
 		panelHeaderFg: '@fg',
 		htmlThemeColor: '@bg',
+		fgOnWhite: '@accent',
 		panelHighlight: ':lighten<3<@panel',
 		listItemHoverBg: 'rgba(255, 255, 255, 0.03)',
 		scrollbarHandle: 'rgba(255, 255, 255, 0.2)',
diff --git a/packages/frontend/src/themes/d-birdsite.json5 b/packages/frontend/src/themes/d-birdsite.json5
index f02e6090d0..c36654667e 100644
--- a/packages/frontend/src/themes/d-birdsite.json5
+++ b/packages/frontend/src/themes/d-birdsite.json5
@@ -6,6 +6,7 @@
   props: {
     accent: '#1d9bf0',
     bg: '#000',
+		fgOnWhite: '@accent',
     link: '#1d9bf0',
     hashtag: '#1d9bf0',
     renote: '#71767b',
diff --git a/packages/frontend/src/themes/d-botanical.json5 b/packages/frontend/src/themes/d-botanical.json5
index 33cf7aa817..62208d2378 100644
--- a/packages/frontend/src/themes/d-botanical.json5
+++ b/packages/frontend/src/themes/d-botanical.json5
@@ -11,6 +11,7 @@
 		bg: 'rgb(37, 38, 36)',
 		fg: 'rgb(216, 212, 199)',
 		fgHighlighted: '#fff',
+		fgOnWhite: '@accent',
 		divider: 'rgba(255, 255, 255, 0.14)',
 		panel: 'rgb(47, 47, 44)',
 		panelHeaderDivider: 'rgba(0, 0, 0, 0)',
diff --git a/packages/frontend/src/themes/d-cherry.json5 b/packages/frontend/src/themes/d-cherry.json5
index a7e1ad1c80..f9638124c2 100644
--- a/packages/frontend/src/themes/d-cherry.json5
+++ b/packages/frontend/src/themes/d-cherry.json5
@@ -10,6 +10,7 @@
 		accent: 'rgb(255, 89, 117)',
 		bg: 'rgb(28, 28, 37)',
 		fg: 'rgb(236, 239, 244)',
+		fgOnWhite: '@accent',
 		panel: 'rgb(35, 35, 47)',
 		renote: '@accent',
 		link: '@accent',
diff --git a/packages/frontend/src/themes/d-cherrypick.json5 b/packages/frontend/src/themes/d-cherrypick.json5
index e6f61b2c74..4b8b1796d1 100644
--- a/packages/frontend/src/themes/d-cherrypick.json5
+++ b/packages/frontend/src/themes/d-cherrypick.json5
@@ -9,6 +9,7 @@
 		bg: 'rgb(28, 28, 37)',
 		fg: 'rgb(236, 239, 244)',
 		fgHighlighted: '#fff',
+		fgOnWhite: '@accent',
 		divider: 'rgb(63, 63, 80)',
 		panel: 'rgb(35, 35, 47)',
 		panelHeaderBg: 'rgb(45, 45, 66)',
diff --git a/packages/frontend/src/themes/d-dark.json5 b/packages/frontend/src/themes/d-dark.json5
index 63144e88ea..ae4f7d53f5 100644
--- a/packages/frontend/src/themes/d-dark.json5
+++ b/packages/frontend/src/themes/d-dark.json5
@@ -11,6 +11,7 @@
 		bg: '#232323',
 		fg: 'rgb(199, 209, 216)',
 		fgHighlighted: '#fff',
+		fgOnWhite: '@accent',
 		divider: 'rgba(255, 255, 255, 0.14)',
 		panel: '#2d2d2d',
 		panelHeaderDivider: 'rgba(0, 0, 0, 0)',
diff --git a/packages/frontend/src/themes/d-future.json5 b/packages/frontend/src/themes/d-future.json5
index 0962a12411..f2c1f3eb86 100644
--- a/packages/frontend/src/themes/d-future.json5
+++ b/packages/frontend/src/themes/d-future.json5
@@ -12,6 +12,7 @@
 		fg: '#D5D5D6',
 		fgHighlighted: '#fff',
 		fgOnAccent: '#000',
+		fgOnWhite: '@accent',
 		divider: 'rgba(255, 255, 255, 0.1)',
 		panel: '#18181c',
 		panelHeaderDivider: 'rgba(0, 0, 0, 0)',
diff --git a/packages/frontend/src/themes/d-green-lime.json5 b/packages/frontend/src/themes/d-green-lime.json5
index 9522f534a4..ca4e688fdb 100644
--- a/packages/frontend/src/themes/d-green-lime.json5
+++ b/packages/frontend/src/themes/d-green-lime.json5
@@ -12,6 +12,7 @@
 		fg: '#dee7e4',
 		fgHighlighted: '#fff',
 		fgOnAccent: '#192320',
+		fgOnWhite: '@accent',
 		divider: '#e7fffb24',
 		panel: '#192320',
 		panelHeaderDivider: 'rgba(0, 0, 0, 0)',
diff --git a/packages/frontend/src/themes/d-green-orange.json5 b/packages/frontend/src/themes/d-green-orange.json5
index e542782c66..c2539816e2 100644
--- a/packages/frontend/src/themes/d-green-orange.json5
+++ b/packages/frontend/src/themes/d-green-orange.json5
@@ -12,6 +12,7 @@
 		fg: '#dee7e4',
 		fgHighlighted: '#fff',
 		fgOnAccent: '#192320',
+		fgOnWhite: '@accent',
 		divider: '#e7fffb24',
 		panel: '#192320',
 		panelHeaderDivider: 'rgba(0, 0, 0, 0)',
diff --git a/packages/frontend/src/themes/d-ice.json5 b/packages/frontend/src/themes/d-ice.json5
index 179b060dcf..b4abc0cacb 100644
--- a/packages/frontend/src/themes/d-ice.json5
+++ b/packages/frontend/src/themes/d-ice.json5
@@ -8,6 +8,7 @@
 
 	props: {
 		accent: '#47BFE8',
+		fgOnWhite: '@accent',
 		bg: '#212526',
 	},
 }
diff --git a/packages/frontend/src/themes/d-persimmon.json5 b/packages/frontend/src/themes/d-persimmon.json5
index e36265ff10..0ab6523dd7 100644
--- a/packages/frontend/src/themes/d-persimmon.json5
+++ b/packages/frontend/src/themes/d-persimmon.json5
@@ -11,6 +11,7 @@
 		bg: 'rgb(31, 33, 31)',
 		fg: '#cdd8c7',
 		fgHighlighted: '#fff',
+		fgOnWhite: '@accent',
 		divider: 'rgba(255, 255, 255, 0.14)',
 		panel: 'rgb(41, 43, 41)',
 		infoFg: '@fg',
diff --git a/packages/frontend/src/themes/d-qdon.json5 b/packages/frontend/src/themes/d-qdon.json5
index 20fc884bc0..224bfac763 100644
--- a/packages/frontend/src/themes/d-qdon.json5
+++ b/packages/frontend/src/themes/d-qdon.json5
@@ -22,6 +22,7 @@
 		bg: '$mstdnBase',
 		acrylicBg: '$mstdnUI',
 		fg: '#eee',
+		fgOnWhite: '@accent',
 		divider: '#2e3340',
 		panel: '$mstdnUI',
 		panelHighlight: '$mstdnBg',
diff --git a/packages/frontend/src/themes/d-u0.json5 b/packages/frontend/src/themes/d-u0.json5
index 3fce93b2fe..ed776746a8 100644
--- a/packages/frontend/src/themes/d-u0.json5
+++ b/packages/frontend/src/themes/d-u0.json5
@@ -55,6 +55,7 @@
 		codeNumber: '#cfff9e',
 		codeString: '#ffb675',
 		fgOnAccent: '#fff',
+		fgOnWhite: '@accent',
 		infoWarnBg: '#42321c',
 		infoWarnFg: '#ffbd3e',
 		navHoverFg: ':lighten<17<@fg',
diff --git a/packages/frontend/src/themes/l-apricot.json5 b/packages/frontend/src/themes/l-apricot.json5
index 1ed5525575..fe1f9f8927 100644
--- a/packages/frontend/src/themes/l-apricot.json5
+++ b/packages/frontend/src/themes/l-apricot.json5
@@ -10,6 +10,7 @@
 		accent: 'rgb(234, 154, 82)',
 		bg: '#e6e5e2',
 		fg: 'rgb(149, 143, 139)',
+		fgOnWhite: '@accent',
 		panel: '#EEECE8',
 		renote: '@accent',
 		link: '@accent',
diff --git a/packages/frontend/src/themes/l-birdsite.json5 b/packages/frontend/src/themes/l-birdsite.json5
index 156cdcf93d..6a35ab562e 100644
--- a/packages/frontend/src/themes/l-birdsite.json5
+++ b/packages/frontend/src/themes/l-birdsite.json5
@@ -5,6 +5,7 @@
   name: 'Birdsite Pure white',
   props: {
     bg: '#fff',
+		fgOnWhite: '@accent',
     link: '#1d9bf0',
     accent: '#1d9bf0',
     renote: '#536472',
diff --git a/packages/frontend/src/themes/l-botanical.json5 b/packages/frontend/src/themes/l-botanical.json5
index 2ea9a7d6c9..5c98927896 100644
--- a/packages/frontend/src/themes/l-botanical.json5
+++ b/packages/frontend/src/themes/l-botanical.json5
@@ -11,6 +11,7 @@
 		bg: 'e2deda',
 		fg: '#3d3d3d',
 		fgHighlighted: '#6bc9a0',
+		fgOnWhite: '@accent',
 		divider: '#cfcfcf',
 		panel: '@X14',
 		panelHeaderBg: '@panel',
diff --git a/packages/frontend/src/themes/l-cherry.json5 b/packages/frontend/src/themes/l-cherry.json5
index 5ad240241e..1189a28fe6 100644
--- a/packages/frontend/src/themes/l-cherry.json5
+++ b/packages/frontend/src/themes/l-cherry.json5
@@ -10,6 +10,7 @@
 		accent: 'rgb(219, 96, 114)',
 		bg: 'rgb(254, 248, 249)',
 		fg: 'rgb(152, 13, 26)',
+		fgOnWhite: '@accent',
 		panel: 'rgb(255, 255, 255)',
 		renote: '@accent',
 		link: 'rgb(156, 187, 5)',
diff --git a/packages/frontend/src/themes/l-cherrypick.json5 b/packages/frontend/src/themes/l-cherrypick.json5
index 57ba2e0110..091a9e0cce 100644
--- a/packages/frontend/src/themes/l-cherrypick.json5
+++ b/packages/frontend/src/themes/l-cherrypick.json5
@@ -9,6 +9,7 @@
 		accent: '#6ba5e3',
 		bg: 'rgb(238, 241, 252)',
 		fg: '#577096',
+		fgOnWhite: '@accent',
 		divider: 'rgb(223, 223, 223)',
 		acrylicPanel: ':alpha<0.5<@panel',
 		header: '@bg',
diff --git a/packages/frontend/src/themes/l-coffee.json5 b/packages/frontend/src/themes/l-coffee.json5
index fbcd4fa9ef..b64cc73583 100644
--- a/packages/frontend/src/themes/l-coffee.json5
+++ b/packages/frontend/src/themes/l-coffee.json5
@@ -10,6 +10,7 @@
 		accent: '#9f8989',
 		bg: '#f5f3f3',
 		fg: '#7f6666',
+		fgOnWhite: '@accent',
 		panel: '#fff',
 		divider: 'rgba(87, 68, 68, 0.1)',
 		renote: 'rgb(160, 172, 125)',
diff --git a/packages/frontend/src/themes/l-light.json5 b/packages/frontend/src/themes/l-light.json5
index 248355c945..63c2e6d278 100644
--- a/packages/frontend/src/themes/l-light.json5
+++ b/packages/frontend/src/themes/l-light.json5
@@ -10,6 +10,7 @@
 	props: {
 		bg: '#f9f9f9',
 		fg: '#676767',
+		fgOnWhite: '@accent',
 		divider: '#e8e8e8',
 		header: ':alpha<0.7<@panel',
 		navBg: '#fff',
diff --git a/packages/frontend/src/themes/l-rainy.json5 b/packages/frontend/src/themes/l-rainy.json5
index 283dd74c6c..e7d1d5af00 100644
--- a/packages/frontend/src/themes/l-rainy.json5
+++ b/packages/frontend/src/themes/l-rainy.json5
@@ -10,6 +10,7 @@
 		accent: '#5db0da',
 		bg: 'rgb(246 248 249)',
 		fg: '#636b71',
+		fgOnWhite: '@accent',
 		panel: '#fff',
 		divider: 'rgb(230 233 234)',
 		panelHeaderDivider: '@divider',
diff --git a/packages/frontend/src/themes/l-sushi.json5 b/packages/frontend/src/themes/l-sushi.json5
index 5846927d65..e787d63734 100644
--- a/packages/frontend/src/themes/l-sushi.json5
+++ b/packages/frontend/src/themes/l-sushi.json5
@@ -10,6 +10,7 @@
 		accent: '#e36749',
 		bg: '#f0eee9',
 		fg: '#5f5f5f',
+		fgOnWhite: '@accent',
 		renote: '@accent',
 		link: '@accent',
 		mention: '@accent',
diff --git a/packages/frontend/src/themes/l-u0.json5 b/packages/frontend/src/themes/l-u0.json5
index 03b114ba39..b77b15e3f0 100644
--- a/packages/frontend/src/themes/l-u0.json5
+++ b/packages/frontend/src/themes/l-u0.json5
@@ -55,6 +55,7 @@
 		codeNumber: '#cfff9e',
 		codeString: '#ffb675',
 		fgOnAccent: '#fff',
+		fgOnWhite: '@accent',
 		infoWarnBg: '#42321c',
 		infoWarnFg: '#ffbd3e',
 		navHoverFg: ':lighten<17<@fg',
diff --git a/packages/frontend/src/themes/l-vivid.json5 b/packages/frontend/src/themes/l-vivid.json5
index b3c08f38ae..822ef948dd 100644
--- a/packages/frontend/src/themes/l-vivid.json5
+++ b/packages/frontend/src/themes/l-vivid.json5
@@ -52,6 +52,7 @@
 		driveFolderBg: ':alpha<0.3<@accent',
 		fgHighlighted: ':darken<3<@fg',
 		fgTransparent: ':alpha<0.5<@fg',
+		fgOnWhite: '@accent',
 		panelHeaderBg: ':lighten<3<@panel',
 		panelHeaderFg: '@fg',
 		htmlThemeColor: '@bg',