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index 90a0caa..30b9c02 100644
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diff --git a/res/static/img/background_patterns/checker10_transparent.png b/res/static/img/background_patterns/checker10_transparent.png
index bc305bc..912ea59 100644
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diff --git a/res/static/img/background_patterns/checker11_transparent.png b/res/static/img/background_patterns/checker11_transparent.png
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diff --git a/res/static/img/background_patterns/checker12_transparent.png b/res/static/img/background_patterns/checker12_transparent.png
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diff --git a/res/static/img/background_patterns/checker13_transparent.png b/res/static/img/background_patterns/checker13_transparent.png
index fad1e69..eb3dec3 100644
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diff --git a/res/static/img/background_patterns/checker14_transparent.png b/res/static/img/background_patterns/checker14_transparent.png
index 7da29ce..1cbe924 100644
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diff --git a/res/static/img/background_patterns/checker15_transparent.png b/res/static/img/background_patterns/checker15_transparent.png
index 1567368..80eef04 100644
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diff --git a/res/static/img/background_patterns/checker16_transparent.png b/res/static/img/background_patterns/checker16_transparent.png
index f8130cb..d832e89 100644
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diff --git a/res/static/img/background_patterns/checker17_transparent.png b/res/static/img/background_patterns/checker17_transparent.png
index 8388b43..27b6683 100644
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diff --git a/res/static/img/background_patterns/checker18.png b/res/static/img/background_patterns/checker18.png
new file mode 100644
index 0000000..76719eb
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diff --git a/res/static/img/background_patterns/checker18_transparent.png b/res/static/img/background_patterns/checker18_transparent.png
new file mode 100644
index 0000000..b6a59e5
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diff --git a/res/static/img/background_patterns/checker1_transparent.png b/res/static/img/background_patterns/checker1_transparent.png
index 1a62c14..f3116bd 100644
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diff --git a/res/static/img/background_patterns/checker2_transparent.png b/res/static/img/background_patterns/checker2_transparent.png
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diff --git a/res/static/img/background_patterns/checker3_transparent.png b/res/static/img/background_patterns/checker3_transparent.png
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diff --git a/res/static/img/background_patterns/checker4_transparent.png b/res/static/img/background_patterns/checker4_transparent.png
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diff --git a/res/static/img/background_patterns/checker6_transparent.png b/res/static/img/background_patterns/checker6_transparent.png
index c920e0d..0569508 100644
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diff --git a/res/static/img/background_patterns/checker7_transparent.png b/res/static/img/background_patterns/checker7_transparent.png
index 2eebabc..f0ea192 100644
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diff --git a/res/static/img/background_patterns/checker8_transparent.png b/res/static/img/background_patterns/checker8_transparent.png
index 3e31440..57f2aad 100644
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diff --git a/res/static/img/background_patterns/checker9_transparent.png b/res/static/img/background_patterns/checker9_transparent.png
index 9d2ca64..77ec81c 100644
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diff --git a/res/static/img/background_patterns/checker_christmas_transparent.png b/res/static/img/background_patterns/checker_christmas_transparent.png
index 49dbd54..4cf0b0f 100644
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diff --git a/res/static/img/background_patterns/checker_developers_transparent.png b/res/static/img/background_patterns/checker_developers_transparent.png
index 1983d25..127753d 100644
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diff --git a/res/static/img/background_patterns/checker_dwarf_transparent.png b/res/static/img/background_patterns/checker_dwarf_transparent.png
index 79f6501..c9b2aa2 100644
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diff --git a/res/static/img/background_patterns/checker_halloween_transparent.png b/res/static/img/background_patterns/checker_halloween_transparent.png
index 954cd97..2e3838e 100644
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diff --git a/res/static/img/background_patterns/checker_ukraine_transparent.png b/res/static/img/background_patterns/checker_ukraine_transparent.png
index 1302e97..5dfde3e 100644
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diff --git a/res/static/img/background_patterns/checker_wednesday_transparent.png b/res/static/img/background_patterns/checker_wednesday_transparent.png
index 1245977..45f74d0 100644
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diff --git a/res/static/img/background_patterns/create_transparent.sh b/res/static/img/background_patterns/create_transparent.sh
index 7cc3c7f..1cf4e3a 100755
--- a/res/static/img/background_patterns/create_transparent.sh
+++ b/res/static/img/background_patterns/create_transparent.sh
@@ -4,7 +4,7 @@ transparent () {
 	convert $1.png -alpha set -channel a -evaluate set $2 $1_transparent.png
 }
 
-for i in {0..17}; do transparent "checker${i}" 5%; done
+for i in {0..18}; do transparent "checker${i}" 5%; done
 transparent "checker_wednesday" 8%
 transparent "checker_dwarf" 8%
 transparent "checker_developers" 8%
diff --git a/svelte/package.json b/svelte/package.json
index cfb947b..5a9581c 100644
--- a/svelte/package.json
+++ b/svelte/package.json
@@ -4,8 +4,7 @@
   "type": "module",
   "scripts": {
     "build": "rollup -c",
-    "dev": "rollup -c -w",
-    "start": "sirv public"
+    "dev": "rollup -c -w"
   },
   "devDependencies": {
     "@babel/core": "^7.22.20",
diff --git a/webcontroller/style.go b/webcontroller/style.go
index 0df4c01..242e8e2 100644
--- a/webcontroller/style.go
+++ b/webcontroller/style.go
@@ -300,7 +300,7 @@ func BackgroundTiles() template.URL {
 	} else if month == time.December && (day == 25 || day == 26 || day == 27) {
 		file = "checker_christmas"
 	} else {
-		file = fmt.Sprintf("checker%d", now.UnixNano()%18)
+		file = fmt.Sprintf("checker%d", now.UnixNano()%19)
 	}
 
 	return template.URL("/res/img/background_patterns/" + file + "_transparent.png")