diff --git a/flake.nix b/flake.nix
index f7feabcc..3f7f4456 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,10 +24,12 @@
     name = "emmet";
     email = "librephoenix@protonmail.com";
     dotfilesDir = "~/dotfiles";
-    theme = "atelier-plateau";
+    theme = "ayu-dark";
     themePolarity = "dark";
-    backgroundUrl = "https://w.wallhaven.cc/full/6d/wallhaven-6d5k6x.jpg";
-    backgroundSha256 = "+xl4H3UiVmMRNvMhIlaLdVTYYqnSyCTSX2UOTGsDQ8c=";
+    backgroundUrlPath = "/themes/"+theme+"/backgroundurl.txt";
+    backgroundUrl = builtins.readFile (./. + backgroundUrlPath);
+    backgroundSha256Path = "/themes/"+theme+"/backgroundsha256.txt";
+    backgroundSha256 = builtins.readFile (./. + backgroundSha256Path);
 
     pkgs = import nixpkgs {
       inherit system;
diff --git a/themes/ayu-dark/backgroundsha256.txt b/themes/ayu-dark/backgroundsha256.txt
new file mode 100644
index 00000000..8b4f2d4f
--- /dev/null
+++ b/themes/ayu-dark/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-0BiSjEZnwh6KnWuNau+9lf1PVBYRnq228l4OA/nm5YI=
diff --git a/themes/ayu-dark/backgroundurl.txt b/themes/ayu-dark/backgroundurl.txt
new file mode 100644
index 00000000..7196a955
--- /dev/null
+++ b/themes/ayu-dark/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/zy/wallhaven-zy8wwo.jpg
diff --git a/themes/emil/backgroundsha256.txt b/themes/emil/backgroundsha256.txt
new file mode 100644
index 00000000..bd40d3e5
--- /dev/null
+++ b/themes/emil/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-TzFm4UeVz8PFun8Xor/BEowZjUx3AVXgeeV537icIAM=
diff --git a/themes/emil/backgroundurl.txt b/themes/emil/backgroundurl.txt
new file mode 100644
index 00000000..2a9ed49c
--- /dev/null
+++ b/themes/emil/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/vg/wallhaven-vglkw3.png
diff --git a/themes/everforest/backgroundsha256.txt b/themes/everforest/backgroundsha256.txt
new file mode 100644
index 00000000..01cb5221
--- /dev/null
+++ b/themes/everforest/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-xtnvDoIs+kKvRXo/L+ifq/q+yWNeqh1EUsaRkmDTtz4=
diff --git a/themes/everforest/backgroundurl.txt b/themes/everforest/backgroundurl.txt
new file mode 100644
index 00000000..17d3ae28
--- /dev/null
+++ b/themes/everforest/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/83/wallhaven-839ppy.png
diff --git a/themes/manegarm/backgroundsha256.txt b/themes/manegarm/backgroundsha256.txt
new file mode 100644
index 00000000..e6f451c0
--- /dev/null
+++ b/themes/manegarm/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-mOWXzivKwI7AJNOleij+mdveoX5IMeswH8bSh1ZNLKE=
diff --git a/themes/manegarm/backgroundurl.txt b/themes/manegarm/backgroundurl.txt
new file mode 100644
index 00000000..bc1b9465
--- /dev/null
+++ b/themes/manegarm/backgroundurl.txt
@@ -0,0 +1 @@
+https://wallpaper-mania.com/wp-content/uploads/2018/09/High_resolution_wallpaper_background_ID_77700131173-optimized.jpg
diff --git a/themes/monokai/backgroundsha256.txt b/themes/monokai/backgroundsha256.txt
new file mode 100644
index 00000000..6411fb2d
--- /dev/null
+++ b/themes/monokai/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-zQXOIdWGxvwh6KFeiWwfRFNqIHtWzCsVHK8ondcYi2w=
diff --git a/themes/monokai/backgroundurl.txt b/themes/monokai/backgroundurl.txt
new file mode 100644
index 00000000..e746a49c
--- /dev/null
+++ b/themes/monokai/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/xl/wallhaven-xl225z.png
diff --git a/themes/something/backgroundsha256.txt b/themes/something/backgroundsha256.txt
new file mode 100644
index 00000000..6fcd29be
--- /dev/null
+++ b/themes/something/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-3HX1ADHBXR50YGmS0Y7i6n19AUX74sy8tJnOLZzMjEw=
diff --git a/themes/something/backgroundurl.txt b/themes/something/backgroundurl.txt
new file mode 100644
index 00000000..d9e99ef9
--- /dev/null
+++ b/themes/something/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/x8/wallhaven-x82ldl.jpg
diff --git a/themes/spaceduck/backgroundsha256.txt b/themes/spaceduck/backgroundsha256.txt
new file mode 100644
index 00000000..db1d1418
--- /dev/null
+++ b/themes/spaceduck/backgroundsha256.txt
@@ -0,0 +1,2 @@
+sha256-+xl4H3UiVmMRNvMhIlaLdVTYYqnSyCTSX2UOTGsDQ8c=
+
diff --git a/themes/spaceduck/backgroundurl.txt b/themes/spaceduck/backgroundurl.txt
new file mode 100644
index 00000000..ca3b0972
--- /dev/null
+++ b/themes/spaceduck/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/6d/wallhaven-6d5k6x.jpg
diff --git a/themes/tomorrow-night/backgroundsha256.txt b/themes/tomorrow-night/backgroundsha256.txt
new file mode 100644
index 00000000..7d5aa52e
--- /dev/null
+++ b/themes/tomorrow-night/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-G8wLZitUlaquirgCtHCFu6dQHJophD8/c7INNMhh49M=
diff --git a/themes/tomorrow-night/backgroundurl.txt b/themes/tomorrow-night/backgroundurl.txt
new file mode 100644
index 00000000..b98dfb5e
--- /dev/null
+++ b/themes/tomorrow-night/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/28/wallhaven-28867y.png
diff --git a/themes/ubuntu/backgroundsha256.txt b/themes/ubuntu/backgroundsha256.txt
new file mode 100644
index 00000000..8b4bf854
--- /dev/null
+++ b/themes/ubuntu/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-5TPwZAQekK1Aq2YdomcJ0irGmIXVPUpgxRwuEetthYw=
diff --git a/themes/ubuntu/backgroundurl.txt b/themes/ubuntu/backgroundurl.txt
new file mode 100644
index 00000000..07e66fb3
--- /dev/null
+++ b/themes/ubuntu/backgroundurl.txt
@@ -0,0 +1 @@
+https://images.hdqwalls.com/download/sea-of-dreamscape-r4-1920x1080.jpg
diff --git a/themes/windows-95/backgroundsha256.txt b/themes/windows-95/backgroundsha256.txt
new file mode 100644
index 00000000..5a30da52
--- /dev/null
+++ b/themes/windows-95/backgroundsha256.txt
@@ -0,0 +1 @@
+sha256-xgMi6fH3yMGk0txu0p5x01OY9qC4x597vEgSy/G9TBY=
diff --git a/themes/windows-95/backgroundurl.txt b/themes/windows-95/backgroundurl.txt
new file mode 100644
index 00000000..66497513
--- /dev/null
+++ b/themes/windows-95/backgroundurl.txt
@@ -0,0 +1 @@
+https://w.wallhaven.cc/full/01/wallhaven-01e6xw.jpg