diff --git a/plugins/by-name/colorful-winsep/default.nix b/plugins/by-name/colorful-winsep/default.nix
new file mode 100644
index 00000000..1cacdcda
--- /dev/null
+++ b/plugins/by-name/colorful-winsep/default.nix
@@ -0,0 +1,31 @@
+{ lib, ... }:
+lib.nixvim.plugins.mkNeovimPlugin {
+  name = "colorful-winsep";
+  packPathName = "colorful-winsep.nvim";
+  package = "colorful-winsep-nvim";
+
+  maintainers = [ lib.maintainers.saygo-png ];
+
+  settingsExample = {
+    hi = {
+      bg = "#7d8618";
+      fg = "#b8bb26";
+    };
+    only_line_seq = true;
+    no_exec_files = [
+      "packer"
+      "TelescopePrompt"
+      "mason"
+      "CompetiTest"
+      "NvimTree"
+    ];
+    symbols = [
+      "━"
+      "┃"
+      "┏"
+      "┓"
+      "┗"
+      "┛"
+    ];
+  };
+}
diff --git a/tests/test-sources/plugins/by-name/colorful-winsep/default.nix b/tests/test-sources/plugins/by-name/colorful-winsep/default.nix
new file mode 100644
index 00000000..095832fc
--- /dev/null
+++ b/tests/test-sources/plugins/by-name/colorful-winsep/default.nix
@@ -0,0 +1,90 @@
+{
+  empty = {
+    plugins.colorful-winsep.enable = true;
+  };
+
+  defaults = {
+    plugins.colorful-winsep = {
+      enable = true;
+      settings = {
+        symbols = [
+          "━"
+          "┃"
+          "┏"
+          "┓"
+          "┗"
+          "┛"
+        ];
+        no_exec_files = [
+          "packer"
+          "TelescopePrompt"
+          "mason"
+          "CompetiTest"
+        ];
+        hi = {
+          fg = "#957CC6";
+          bg.__raw = ''vim.api.nvim_get_hl_by_name("Normal", true)["background"]'';
+        };
+        events = [
+          "WinEnter"
+          "WinResized"
+          "SessionLoadPost"
+        ];
+        smooth = true;
+        exponential_smoothing = true;
+        only_line_seq = true;
+        anchor = {
+          left = {
+            height = 1;
+            x = -1;
+            y = -1;
+          };
+          right = {
+            height = 1;
+            x = -1;
+            y = 0;
+          };
+          up = {
+            width = 0;
+            x = -1;
+            y = 0;
+          };
+          bottom = {
+            width = 0;
+            x = 1;
+            y = 0;
+          };
+        };
+        light_pollution.__raw = "function(lines) end";
+      };
+    };
+  };
+
+  example = {
+    plugins.colorful-winsep = {
+      enable = true;
+      settings = {
+        hi = {
+          bg = "#7d8618";
+          fg = "#b8bb26";
+        };
+        only_line_seq = true;
+        no_exec_files = [
+          "packer"
+          "TelescopePrompt"
+          "mason"
+          "CompetiTest"
+          "NvimTree"
+        ];
+        symbols = [
+          "━"
+          "┃"
+          "┏"
+          "┓"
+          "┗"
+          "┛"
+        ];
+      };
+    };
+  };
+}