diff --git a/src/main/events/index.ts b/src/main/events/index.ts
index 25882c3f..c4dc0202 100644
--- a/src/main/events/index.ts
+++ b/src/main/events/index.ts
@@ -74,6 +74,10 @@ import "./cloud-save/upload-save-game";
 import "./cloud-save/delete-game-artifact";
 import "./cloud-save/select-game-backup-path";
 import "./notifications/publish-new-repacks-notification";
+import "./themes/add-custom-theme";
+import "./themes/delete-custom-theme";
+import "./themes/get-all-custom-themes";
+import "./themes/delete-all-custom-themes";
 import { isPortableVersion } from "@main/helpers";
 
 ipcMain.handle("ping", () => "pong");
diff --git a/src/main/events/themes/add-custom-theme.ts b/src/main/events/themes/add-custom-theme.ts
new file mode 100644
index 00000000..8e9c4c98
--- /dev/null
+++ b/src/main/events/themes/add-custom-theme.ts
@@ -0,0 +1,12 @@
+import { Theme } from "@types";
+import { themes } from "@main/level/sublevels/themes";
+import { registerEvent } from "../register-event";
+
+const addCustomTheme = async (
+  _event: Electron.IpcMainInvokeEvent,
+  theme: Theme
+) => {
+  await themes.put(theme.id, theme);
+};
+
+registerEvent("addCustomTheme", addCustomTheme);
diff --git a/src/main/events/themes/delete-all-custom-themes.ts b/src/main/events/themes/delete-all-custom-themes.ts
new file mode 100644
index 00000000..a3c6018e
--- /dev/null
+++ b/src/main/events/themes/delete-all-custom-themes.ts
@@ -0,0 +1,9 @@
+import { themes } from "@main/level/sublevels/themes";
+import { registerEvent } from "../register-event";
+
+const deleteAllCustomThemes = async (_event: Electron.IpcMainInvokeEvent) => {
+  console.log("sexo2");
+  await themes.clear();
+};
+
+registerEvent("deleteAllCustomThemes", deleteAllCustomThemes);
diff --git a/src/main/events/themes/delete-custom-theme.ts b/src/main/events/themes/delete-custom-theme.ts
new file mode 100644
index 00000000..604053e0
--- /dev/null
+++ b/src/main/events/themes/delete-custom-theme.ts
@@ -0,0 +1,11 @@
+import { themes } from "@main/level/sublevels/themes";
+import { registerEvent } from "../register-event";
+
+const deleteCustomTheme = async (
+  _event: Electron.IpcMainInvokeEvent,
+  themeId: string
+) => {
+  await themes.del(themeId);
+};
+
+registerEvent("deleteCustomTheme", deleteCustomTheme);
diff --git a/src/main/events/themes/get-all-custom-themes.ts b/src/main/events/themes/get-all-custom-themes.ts
new file mode 100644
index 00000000..87a9c02a
--- /dev/null
+++ b/src/main/events/themes/get-all-custom-themes.ts
@@ -0,0 +1,8 @@
+import { themes } from "@main/level/sublevels/themes";
+import { registerEvent } from "../register-event";
+
+const getAllCustomThemes = async (_event: Electron.IpcMainInvokeEvent) => {
+  return await themes.values().all();
+};
+
+registerEvent("getAllCustomThemes", getAllCustomThemes);
diff --git a/src/main/helpers/index.ts b/src/main/helpers/index.ts
index 163fb23a..99393d6c 100644
--- a/src/main/helpers/index.ts
+++ b/src/main/helpers/index.ts
@@ -32,3 +32,8 @@ export const isPortableVersion = () => {
 
 export const normalizePath = (str: string) =>
   path.posix.normalize(str).replace(/\\/g, "/");
+
+export const isValidHexColor = (color: string): boolean => {
+  const hexColorRegex = /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/;
+  return hexColorRegex.test(color);
+};
diff --git a/src/main/level/sublevels/keys.ts b/src/main/level/sublevels/keys.ts
index 53eae44b..3f0a09ea 100644
--- a/src/main/level/sublevels/keys.ts
+++ b/src/main/level/sublevels/keys.ts
@@ -5,6 +5,7 @@ export const levelKeys = {
   game: (shop: GameShop, objectId: string) => `${shop}:${objectId}`,
   user: "user",
   auth: "auth",
+  themes: "themes",
   gameShopCache: "gameShopCache",
   gameShopCacheItem: (shop: GameShop, objectId: string, language: string) =>
     `${shop}:${objectId}:${language}`,
diff --git a/src/main/level/sublevels/themes.ts b/src/main/level/sublevels/themes.ts
new file mode 100644
index 00000000..3967c510
--- /dev/null
+++ b/src/main/level/sublevels/themes.ts
@@ -0,0 +1,7 @@
+import type { Theme } from "@types";
+import { db } from "../level";
+import { levelKeys } from "./keys";
+
+export const themes = db.sublevel<string, Theme>(levelKeys.themes, {
+  valueEncoding: "json",
+});
diff --git a/src/preload/index.ts b/src/preload/index.ts
index 588becdc..e49b76ef 100644
--- a/src/preload/index.ts
+++ b/src/preload/index.ts
@@ -14,6 +14,7 @@ import type {
   CatalogueSearchPayload,
   SeedingStatus,
   GameAchievement,
+  Theme,
 } from "@types";
 import type { AuthPage, CatalogueCategory } from "@shared";
 import type { AxiosProgressEvent } from "axios";
@@ -334,4 +335,11 @@ contextBridge.exposeInMainWorld("electron", {
   /* Notifications */
   publishNewRepacksNotification: (newRepacksCount: number) =>
     ipcRenderer.invoke("publishNewRepacksNotification", newRepacksCount),
+
+  /* Themes */
+  addCustomTheme: (theme: Theme) => ipcRenderer.invoke("addCustomTheme", theme),
+  getAllCustomThemes: () => ipcRenderer.invoke("getAllCustomThemes"),
+  deleteAllCustomThemes: () => ipcRenderer.invoke("deleteAllCustomThemes"),
+  deleteCustomTheme: (themeId: string) =>
+    ipcRenderer.invoke("deleteCustomTheme", themeId),
 });
diff --git a/src/renderer/src/declaration.d.ts b/src/renderer/src/declaration.d.ts
index 390b8c5e..7017f018 100644
--- a/src/renderer/src/declaration.d.ts
+++ b/src/renderer/src/declaration.d.ts
@@ -269,6 +269,12 @@ declare global {
 
     /* Notifications */
     publishNewRepacksNotification: (newRepacksCount: number) => Promise<void>;
+
+    /* Themes */
+    addCustomTheme: (theme: Theme) => Promise<void>;
+    getAllCustomThemes: () => Promise<Theme[]>;
+    deleteAllCustomThemes: () => Promise<void>;
+    deleteCustomTheme: (themeId: string) => Promise<void>;
   }
 
   interface Window {
diff --git a/src/types/index.ts b/src/types/index.ts
index fdca8009..1168a584 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -294,3 +294,4 @@ export * from "./download.types";
 export * from "./ludusavi.types";
 export * from "./how-long-to-beat.types";
 export * from "./level.types";
+export * from "./theme.types";
diff --git a/src/types/theme.types.ts b/src/types/theme.types.ts
new file mode 100644
index 00000000..bd77bb75
--- /dev/null
+++ b/src/types/theme.types.ts
@@ -0,0 +1,23 @@
+import { isValidHexColor } from "@main/helpers";
+import { z } from "zod";
+
+const hexColorSchema = z.string().refine(isValidHexColor);
+type HexColorType = z.infer<typeof hexColorSchema>;
+
+export interface Theme {
+  id: string;
+  name: string;
+  colors: {
+    accent: HexColorType;
+    background: HexColorType;
+    surface: HexColorType;
+    optional1?: HexColorType;
+    optional2?: HexColorType;
+  };
+  description?: string;
+  author: number;
+  isActive: boolean;
+  code: string;
+  createdAt: Date;
+  updatedAt: Date;
+}