diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..5291fbb
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,23 @@
+1.5.4 (2026-02-10)
+Aggiunti i pulsanti "Download" al MailViewer, PDF e Image viewer, per scaricare il file invece di aprirlo direttamente.
+Refactor del sistema di bug report.
+
+1.5.3 (2026-02-10)
+Sistemato un bug dove, al primo avvio, il tema chiaro era applicato insieme all'opzioni del tema scuro sul contenuto mail, causando un contrasto eccessivo.
+
+1.5.2 (2026-02-10)
+Supporto tema chiaro/scuro.
+Internazionalizzazione completa (Italiano/Inglese).
+Opzioni di accessibilità (riduzione animazioni, contrasto).
+
+1.5.1 (2026-02-09)
+Sistemato un bug del primo avvio, con mismatch della lingua.
+Aggiunto il supporto all'installazione sotto AppData/Local
+
+1.5.0 (2026-02-08)
+Sistema di aggiornamento automatico self-hosted (ancora non attivo di default).
+Sistema di bug report integrato.
+
+1.4.1 (2026-02-06)
+Export/Import impostazioni.
+Aggiornamento configurazione installer.
\ No newline at end of file
diff --git a/frontend/src/lib/components/BugReportDialog.svelte b/frontend/src/lib/components/BugReportDialog.svelte
new file mode 100644
index 0000000..168ee6c
--- /dev/null
+++ b/frontend/src/lib/components/BugReportDialog.svelte
@@ -0,0 +1,264 @@
+<script lang="ts">
+  import { bugReportDialogOpen } from "$lib/stores/app";
+  import * as m from "$lib/paraglide/messages.js";
+  import * as Dialog from "$lib/components/ui/dialog/index.js";
+  import { Button, buttonVariants } from "$lib/components/ui/button/index.js";
+  import { Input } from "$lib/components/ui/input/index.js";
+  import { Label } from "$lib/components/ui/label/index.js";
+  import { Textarea } from "$lib/components/ui/textarea/index.js";
+  import { CheckCircle, Copy, FolderOpen, Camera, Loader2 } from "@lucide/svelte";
+  import { toast } from "svelte-sonner";
+  import { TakeScreenshot, SubmitBugReport, OpenFolderInExplorer } from "$lib/wailsjs/go/main/App";
+
+  // Bug report form state
+  let userName = $state("");
+  let userEmail = $state("");
+  let bugDescription = $state("");
+
+  // Bug report screenshot state
+  let screenshotData = $state("");
+  let isCapturing = $state(false);
+
+  // Bug report UI state
+  let isSubmitting = $state(false);
+  let isSuccess = $state(false);
+  let resultZipPath = $state("");
+
+  // Bug report dialog effects
+  $effect(() => {
+    if ($bugReportDialogOpen) {
+      // Capture screenshot immediately when dialog opens
+      captureScreenshot();
+    } else {
+      // Reset form when dialog closes
+      resetBugReportForm();
+    }
+  });
+
+  async function captureScreenshot() {
+    isCapturing = true;
+    try {
+      const result = await TakeScreenshot();
+      screenshotData = result.data;
+      console.log("Screenshot captured:", result.width, "x", result.height);
+    } catch (err) {
+      console.error("Failed to capture screenshot:", err);
+    } finally {
+      isCapturing = false;
+    }
+  }
+
+  function resetBugReportForm() {
+    userName = "";
+    userEmail = "";
+    bugDescription = "";
+    screenshotData = "";
+    isCapturing = false;
+    isSubmitting = false;
+    isSuccess = false;
+    resultZipPath = "";
+  }
+
+  async function handleBugReportSubmit(event: Event) {
+    event.preventDefault();
+
+    if (!bugDescription.trim()) {
+      toast.error("Please provide a bug description.");
+      return;
+    }
+
+    isSubmitting = true;
+
+    try {
+      const result = await SubmitBugReport({
+        name: userName,
+        email: userEmail,
+        description: bugDescription,
+        screenshotData: screenshotData
+      });
+
+      resultZipPath = result.zipPath;
+      isSuccess = true;
+      console.log("Bug report created:", result.zipPath);
+    } catch (err) {
+      console.error("Failed to create bug report:", err);
+      toast.error(m.bugreport_error());
+    } finally {
+      isSubmitting = false;
+    }
+  }
+
+  async function copyBugReportPath() {
+    try {
+      await navigator.clipboard.writeText(resultZipPath);
+      toast.success(m.bugreport_copied());
+    } catch (err) {
+      console.error("Failed to copy path:", err);
+    }
+  }
+
+  async function openBugReportFolder() {
+    try {
+      const folderPath = resultZipPath.replace(/\.zip$/, "");
+      await OpenFolderInExplorer(folderPath);
+    } catch (err) {
+      console.error("Failed to open folder:", err);
+    }
+  }
+
+  function closeBugReportDialog() {
+    $bugReportDialogOpen = false;
+  }
+</script>
+
+<Dialog.Root bind:open={$bugReportDialogOpen}>
+  <Dialog.Content class="sm:max-w-[500px] w-full max-h-[80vh] overflow-y-auto custom-scrollbar">
+    {#if isSuccess}
+      <!-- Success State -->
+      <Dialog.Header>
+        <Dialog.Title class="flex items-center gap-2">
+          <CheckCircle class="h-5 w-5 text-green-500" />
+          {m.bugreport_success_title()}
+        </Dialog.Title>
+        <Dialog.Description>
+          {m.bugreport_success_message()}
+        </Dialog.Description>
+      </Dialog.Header>
+
+      <div class="grid gap-4 py-4">
+        <div class="bg-muted rounded-md p-3">
+          <code class="text-xs break-all select-all">{resultZipPath}</code>
+        </div>
+
+        <div class="flex gap-2">
+          <Button variant="outline" class="flex-1" onclick={copyBugReportPath}>
+            <Copy class="h-4 w-4 mr-2" />
+            {m.bugreport_copy_path()}
+          </Button>
+          <Button variant="outline" class="flex-1" onclick={openBugReportFolder}>
+            <FolderOpen class="h-4 w-4 mr-2" />
+            {m.bugreport_open_folder()}
+          </Button>
+        </div>
+      </div>
+
+      <Dialog.Footer>
+        <Button onclick={closeBugReportDialog}>
+          {m.bugreport_close()}
+        </Button>
+      </Dialog.Footer>
+    {:else}
+      <!-- Form State -->
+      <form onsubmit={handleBugReportSubmit}>
+        <Dialog.Header>
+          <Dialog.Title>{m.bugreport_title()}</Dialog.Title>
+          <Dialog.Description>
+            {m.bugreport_description()}
+          </Dialog.Description>
+        </Dialog.Header>
+
+        <div class="grid gap-4 py-4">
+          <div class="grid gap-2">
+            <Label for="bug-name">{m.bugreport_name_label()}</Label>
+            <Input
+              id="bug-name"
+              placeholder={m.bugreport_name_placeholder()}
+              bind:value={userName}
+              disabled={isSubmitting}
+            />
+          </div>
+
+          <div class="grid gap-2">
+            <Label for="bug-email">{m.bugreport_email_label()}</Label>
+            <Input
+              id="bug-email"
+              type="email"
+              placeholder={m.bugreport_email_placeholder()}
+              bind:value={userEmail}
+              disabled={isSubmitting}
+            />
+          </div>
+
+          <div class="grid gap-2">
+            <Label for="bug-description">{m.bugreport_text_label()}</Label>
+            <Textarea
+              id="bug-description"
+              placeholder={m.bugreport_text_placeholder()}
+              bind:value={bugDescription}
+              disabled={isSubmitting}
+              class="min-h-[120px]"
+            />
+          </div>
+
+          <!-- Screenshot Preview -->
+          <div class="grid gap-2">
+            <Label class="flex items-center gap-2">
+              <Camera class="h-4 w-4" />
+              {m.bugreport_screenshot_label()}
+            </Label>
+            {#if isCapturing}
+              <div class="flex items-center gap-2 text-muted-foreground text-sm">
+                <Loader2 class="h-4 w-4 animate-spin" />
+                Capturing...
+              </div>
+            {:else if screenshotData}
+              <div class="border rounded-md overflow-hidden">
+                <img
+                  src="data:image/png;base64,{screenshotData}"
+                  alt="Screenshot preview"
+                  class="w-full h-32 object-cover object-top opacity-80 hover:opacity-100 transition-opacity cursor-pointer"
+                />
+              </div>
+            {:else}
+              <div class="text-muted-foreground text-sm">
+                No screenshot available
+              </div>
+            {/if}
+          </div>
+
+          <p class="text-muted-foreground text-sm">
+            {m.bugreport_info()}
+          </p>
+        </div>
+
+        <Dialog.Footer>
+          <button type="button" class={buttonVariants({ variant: "outline" })} disabled={isSubmitting} onclick={closeBugReportDialog}>
+            {m.bugreport_cancel()}
+          </button>
+          <Button type="submit" disabled={isSubmitting || isCapturing}>
+            {#if isSubmitting}
+              <Loader2 class="h-4 w-4 mr-2 animate-spin" />
+              {m.bugreport_submitting()}
+            {:else}
+              {m.bugreport_submit()}
+            {/if}
+          </Button>
+        </Dialog.Footer>
+      </form>
+    {/if}
+  </Dialog.Content>
+</Dialog.Root>
+
+<style>
+  :global(.custom-scrollbar::-webkit-scrollbar) {
+    width: 6px;
+    height: 6px;
+  }
+
+  :global(.custom-scrollbar::-webkit-scrollbar-track) {
+    background: transparent;
+  }
+
+  :global(.custom-scrollbar::-webkit-scrollbar-thumb) {
+    background: var(--border);
+    border-radius: 6px;
+  }
+
+  :global(.custom-scrollbar::-webkit-scrollbar-thumb:hover) {
+    background: var(--muted-foreground);
+  }
+
+  :global(.custom-scrollbar::-webkit-scrollbar-corner) {
+    background: transparent;
+  }
+</style>
diff --git a/frontend/src/routes/(app)/+layout.svelte b/frontend/src/routes/(app)/+layout.svelte
index 8d5e373..91b7545 100644
--- a/frontend/src/routes/(app)/+layout.svelte
+++ b/frontend/src/routes/(app)/+layout.svelte
@@ -17,22 +17,14 @@
     House,
     Settings,
     Bug,
-    Loader2,
-    Copy,
-    FolderOpen,
-    CheckCircle,
-    Camera,
     Heart,
     Info,
     Music
   } from "@lucide/svelte";
   import { Separator } from "$lib/components/ui/separator/index.js";
   import { toast } from "svelte-sonner";
-  import { Button, buttonVariants } from "$lib/components/ui/button/index.js";
-  import * as Dialog from "$lib/components/ui/dialog/index.js";
-  import { Input } from "$lib/components/ui/input/index.js";
-  import { Label } from "$lib/components/ui/label/index.js";
-  import { Textarea } from "$lib/components/ui/textarea/index.js";
+  import { buttonVariants } from "$lib/components/ui/button/index.js";
+  import BugReportDialog from "$lib/components/BugReportDialog.svelte";
 
   import {
     WindowMinimise,
@@ -44,7 +36,7 @@
     EventsOff,
   } from "$lib/wailsjs/runtime/runtime";
   import { RefreshCcwDot } from "@lucide/svelte";
-  import { IsDebuggerRunning, QuitApp, TakeScreenshot, SubmitBugReport, OpenFolderInExplorer } from "$lib/wailsjs/go/main/App";
+  import { IsDebuggerRunning, QuitApp } from "$lib/wailsjs/go/main/App";
   import { settingsStore } from "$lib/stores/settings.svelte.js";
 
   let versionInfo: utils.Config | null = $state(null);
@@ -52,20 +44,6 @@
   let isDebugerOn: boolean = $state(false);
   let isDebbugerProtectionOn: boolean = $state(true);
 
-  // Bug report form state
-  let userName = $state("");
-  let userEmail = $state("");
-  let bugDescription = $state("");
-
-  // Bug report screenshot state
-  let screenshotData = $state("");
-  let isCapturing = $state(false);
-
-  // Bug report UI state
-  let isSubmitting = $state(false);
-  let isSuccess = $state(false);
-  let resultZipPath = $state("");
-
   async function syncMaxState() {
     isMaximized = await WindowIsMaximised();
   }
@@ -155,17 +133,6 @@
     applyTheme(stored === "light" ? "light" : "dark");
   });
 
-  // Bug report dialog effects
-  $effect(() => {
-    if ($bugReportDialogOpen) {
-      // Capture screenshot immediately when dialog opens
-      captureScreenshot();
-    } else {
-      // Reset form when dialog closes
-      resetBugReportForm();
-    }
-  });
-
   // Listen for automatic update notifications
   $effect(() => {
     if (!browser) return;
@@ -186,81 +153,6 @@
     };
   });
 
-  async function captureScreenshot() {
-    isCapturing = true;
-    try {
-      const result = await TakeScreenshot();
-      screenshotData = result.data;
-      console.log("Screenshot captured:", result.width, "x", result.height);
-    } catch (err) {
-      console.error("Failed to capture screenshot:", err);
-    } finally {
-      isCapturing = false;
-    }
-  }
-
-  function resetBugReportForm() {
-    userName = "";
-    userEmail = "";
-    bugDescription = "";
-    screenshotData = "";
-    isCapturing = false;
-    isSubmitting = false;
-    isSuccess = false;
-    resultZipPath = "";
-  }
-
-  async function handleBugReportSubmit(event: Event) {
-    event.preventDefault();
-
-    if (!bugDescription.trim()) {
-      toast.error("Please provide a bug description.");
-      return;
-    }
-
-    isSubmitting = true;
-
-    try {
-      const result = await SubmitBugReport({
-        name: userName,
-        email: userEmail,
-        description: bugDescription,
-        screenshotData: screenshotData
-      });
-
-      resultZipPath = result.zipPath;
-      isSuccess = true;
-      console.log("Bug report created:", result.zipPath);
-    } catch (err) {
-      console.error("Failed to create bug report:", err);
-      toast.error(m.bugreport_error());
-    } finally {
-      isSubmitting = false;
-    }
-  }
-
-  async function copyBugReportPath() {
-    try {
-      await navigator.clipboard.writeText(resultZipPath);
-      toast.success(m.bugreport_copied());
-    } catch (err) {
-      console.error("Failed to copy path:", err);
-    }
-  }
-
-  async function openBugReportFolder() {
-    try {
-      const folderPath = resultZipPath.replace(/\.zip$/, "");
-      await OpenFolderInExplorer(folderPath);
-    } catch (err) {
-      console.error("Failed to open folder:", err);
-    }
-  }
-
-  function closeBugReportDialog() {
-    $bugReportDialogOpen = false;
-  }
-
   syncMaxState();
 </script>
 
@@ -435,134 +327,7 @@
     {/each}
   </div>
 
-  <!-- Bug Report Dialog -->
-  <Dialog.Root bind:open={$bugReportDialogOpen}>
-    <Dialog.Content class="sm:max-w-[500px] w-full max-h-[80vh] overflow-y-auto custom-scrollbar">
-      {#if isSuccess}
-        <!-- Success State -->
-        <Dialog.Header>
-          <Dialog.Title class="flex items-center gap-2">
-            <CheckCircle class="h-5 w-5 text-green-500" />
-            {m.bugreport_success_title()}
-          </Dialog.Title>
-          <Dialog.Description>
-            {m.bugreport_success_message()}
-          </Dialog.Description>
-        </Dialog.Header>
-
-        <div class="grid gap-4 py-4">
-          <div class="bg-muted rounded-md p-3">
-            <code class="text-xs break-all select-all">{resultZipPath}</code>
-          </div>
-
-          <div class="flex gap-2">
-            <Button variant="outline" class="flex-1" onclick={copyBugReportPath}>
-              <Copy class="h-4 w-4 mr-2" />
-              {m.bugreport_copy_path()}
-            </Button>
-            <Button variant="outline" class="flex-1" onclick={openBugReportFolder}>
-              <FolderOpen class="h-4 w-4 mr-2" />
-              {m.bugreport_open_folder()}
-            </Button>
-          </div>
-        </div>
-
-        <Dialog.Footer>
-          <Button onclick={closeBugReportDialog}>
-            {m.bugreport_close()}
-          </Button>
-        </Dialog.Footer>
-      {:else}
-        <!-- Form State -->
-        <form onsubmit={handleBugReportSubmit}>
-          <Dialog.Header>
-            <Dialog.Title>{m.bugreport_title()}</Dialog.Title>
-            <Dialog.Description>
-              {m.bugreport_description()}
-            </Dialog.Description>
-          </Dialog.Header>
-
-          <div class="grid gap-4 py-4">
-            <div class="grid gap-2">
-              <Label for="bug-name">{m.bugreport_name_label()}</Label>
-              <Input
-                id="bug-name"
-                placeholder={m.bugreport_name_placeholder()}
-                bind:value={userName}
-                disabled={isSubmitting}
-              />
-            </div>
-
-            <div class="grid gap-2">
-              <Label for="bug-email">{m.bugreport_email_label()}</Label>
-              <Input
-                id="bug-email"
-                type="email"
-                placeholder={m.bugreport_email_placeholder()}
-                bind:value={userEmail}
-                disabled={isSubmitting}
-              />
-            </div>
-
-            <div class="grid gap-2">
-              <Label for="bug-description">{m.bugreport_text_label()}</Label>
-              <Textarea
-                id="bug-description"
-                placeholder={m.bugreport_text_placeholder()}
-                bind:value={bugDescription}
-                disabled={isSubmitting}
-                class="min-h-[120px]"
-              />
-            </div>
-
-            <!-- Screenshot Preview -->
-            <div class="grid gap-2">
-              <Label class="flex items-center gap-2">
-                <Camera class="h-4 w-4" />
-                {m.bugreport_screenshot_label()}
-              </Label>
-              {#if isCapturing}
-                <div class="flex items-center gap-2 text-muted-foreground text-sm">
-                  <Loader2 class="h-4 w-4 animate-spin" />
-                  Capturing...
-                </div>
-              {:else if screenshotData}
-                <div class="border rounded-md overflow-hidden">
-                  <img
-                    src="data:image/png;base64,{screenshotData}"
-                    alt="Screenshot preview"
-                    class="w-full h-32 object-cover object-top opacity-80 hover:opacity-100 transition-opacity cursor-pointer"
-                  />
-                </div>
-              {:else}
-                <div class="text-muted-foreground text-sm">
-                  No screenshot available
-                </div>
-              {/if}
-            </div>
-
-            <p class="text-muted-foreground text-sm">
-              {m.bugreport_info()}
-            </p>
-          </div>
-
-          <Dialog.Footer>
-            <button type="button" class={buttonVariants({ variant: "outline" })} disabled={isSubmitting} onclick={closeBugReportDialog}>
-              {m.bugreport_cancel()}
-            </button>
-            <Button type="submit" disabled={isSubmitting || isCapturing}>
-              {#if isSubmitting}
-                <Loader2 class="h-4 w-4 mr-2 animate-spin" />
-                {m.bugreport_submitting()}
-              {:else}
-                {m.bugreport_submit()}
-              {/if}
-            </Button>
-          </Dialog.Footer>
-        </form>
-      {/if}
-    </Dialog.Content>
-  </Dialog.Root>
+  <BugReportDialog />
 </div>
 
 <style>
@@ -808,26 +573,4 @@
       transform: rotate(360deg);
     }
   }
-
-  :global(.custom-scrollbar::-webkit-scrollbar) {
-    width: 6px;
-    height: 6px;
-  }
-
-  :global(.custom-scrollbar::-webkit-scrollbar-track) {
-    background: transparent;
-  }
-
-  :global(.custom-scrollbar::-webkit-scrollbar-thumb) {
-    background: var(--border);
-    border-radius: 6px;
-  }
-
-  :global(.custom-scrollbar::-webkit-scrollbar-thumb:hover) {
-    background: var(--muted-foreground);
-  }
-
-  :global(.custom-scrollbar::-webkit-scrollbar-corner) {
-    background: transparent;
-  }
 </style>