diff --git a/.gitignore b/.gitignore
index 2345db7..ab17bd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@ docs/plans
 docs/specs
 docs/devlogs
 #   ────────────────────────────────────────────────────────
+/target
diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..b8e5732
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "icon-color-tool"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+gtk = { package = "gtk4", version = "0.11" }
+anyhow = "1"
+regex = "1"
+serde = { version = "1", features = ["derive"] }
+toml = "0.8"
+walkdir = "2"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..0dabc14
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,21 @@
+use gtk::prelude::*;
+use gtk::{glib, Application, ApplicationWindow};
+
+const APP_ID: &str = "dev.rootiest.IconColorTool";
+
+fn main() -> glib::ExitCode {
+    let app = Application::builder().application_id(APP_ID).build();
+
+    app.connect_activate(|app| {
+        let window = ApplicationWindow::builder()
+            .application(app)
+            .title("Icon Color Tool")
+            .default_width(900)
+            .default_height(650)
+            .build();
+
+        window.present();
+    });
+
+    app.run()
+}