> Pick one of 23 themes or set the colours yourself, and use the whole writing app in any of 23 interface languages. # ![](/_astro/artist-palette.C6g46had_1JP3nh.webp) Themes and Languages Make the studio look and read the way you like NovelOS Studio is a writing app you can make your own. Pick one of 23 themes or set the colours yourself, and use the whole app in any of 23 interface languages, on the computer and on the phone. * $45 once, no subscription * Windows and macOS * Phone app included * Works offline [Buy NovelOS, $45 once](https://buy.novelos.studio/) [ Download for Free ![](/_astro/windows.BgLZZtb4_jj0G0.webp)Windows | ![](/_astro/apple.DpoFb0IJ_2gqwJ3.webp)macOS | ![](/_astro/android.U0XyjIh__1jgcYB.webp)Mobile ](/downloads/) [ ![The Appearance tab of Settings with the list of themes grouped as Classic, Dark and Light.](/images/1440/settings-appearance.webp) Starts at 24:00 ](https://youtu.be/Wrey3NAX75U?t=1440) Part of the 25 minute walkthrough. [Watch the full tour from the start ](https://youtu.be/Wrey3NAX75U) [Watch on YouTube ](https://youtu.be/Wrey3NAX75U?t=1440) ## 23 colour themes for the whole app Themes come in three groups: Classic, Dark and Light. Click one and the whole app changes at once. Dark Academia is the default. Midnight Ink theme Midnight Ink is one of 23 themes. Click a theme and the whole app changes at once. Paper theme Paper is a warm light theme for daytime writing. Themes are grouped as Classic, Dark and Light. Themes Choose from 23 themes, light and dark. The change is instant. ## Set the colours yourself The custom theme editor starts from the theme you are using. Change a colour, and it warns you if two colours are too close to read. A warning before you commit If two colours would make text hard to read, the custom theme editor tells you before you use the theme. Custom theme Build your own theme colour by colour. The editor warns you when text would be hard to read. ## The whole app in 23 languages Arabic, Chinese (Simplified and Traditional), Danish, Dutch, English, Finnish, French, German, Hebrew, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Polish, Portuguese, Spanish, Swedish, Thai, Turkish and Vietnamese. NovelOS in Japanese Choose your language in Settings and the whole app changes at once: menus, chapter list, buttons and status bar. Your book stays in the language you write in. This is the manuscript editor with the interface in Japanese. NovelOS in Arabic Arabic is one of the 23 interface languages. The chapter list, the buttons and the status bar of the manuscript editor are in Arabic while the chapter itself stays as you wrote it. NovelOS in German German is one of the 23 interface languages. Here the Cast screen shows a character page with its tabs, field labels and buttons in German. Interface language Pick the language of the app from a list of 23 in Settings. The change applies at once, with no restart. Here the app is already in Japanese with the list open. ## Choose the font and spacing of the page you write on The Editor & Typography settings set the font, text size, line spacing and paragraph spacing of your writing page. They are separate from the colour theme around it. Typewriter mode Typewriter mode keeps the line you are typing in the middle of the screen, so your eyes stay in one place. Editor and typography Set the font, text size, line spacing and paragraph spacing of the editor, and the voice and speed for reading aloud. ## Also here * **Write your book in any language.** The app's language and the book's language are separate settings. Word counts are accurate for Chinese, Japanese and Thai. Voice features are English only. * **Theme picker in the navigation bar.** Switch theme at any time without opening Settings. * **Each device keeps its own.** Importing a project does not change the language or theme of that device. ## Related features [See every feature → ](/features/) * [ The phone app ](/features/mobile-app/) The same studio on iOS and Android with the same licence, and one file that moves a project between devices. * [ The manuscript editor ](/features/manuscript/) Write the book in chapters and sub-chapters, with Zen, Typewriter and Vanishing modes and search that forgives typos. * [ Book Preview ](/features/book-preview/) See your book as printed pages at your trim size while you are still writing it. * [ Publish and export ](/features/manuscript-formatter/) Export to Word, EPUB, PDF, HTML, Markdown, RTF and plain text. The PDF follows your trim size, margins and font. ## Common questions ### Is there a dark mode? Yes. The default theme, Dark Academia, is dark, and there are 23 themes in three groups: Classic, Dark and Light. ### Can I make my own theme? Yes. The custom theme editor starts from the theme you are using and warns you when two colours would be hard to read together. ### Can I write a book in a language the app is not translated into? Yes. The app's language and the book's language are separate settings. ### Do the voice features work in my language? Only in English for now. Write by voice, read aloud and audiobook export work in English projects. ### Does changing the theme change how my exported book looks? No. The theme is how the app looks to you. The printed page is set in Book Layout. ### Is it included in the $45? Yes. Every theme and every language is included. There are no paid themes. ## Guides for your setup [Browse all articles → ](/blog/) [ ![](/_astro/exposition-timing-window.C3UFnI9B_Z1bB0dh.webp) Exposition in Motion: Give Readers the Right Fact at the Right Moment Place exposition where readers need it by testing what each fact helps them follow, judge, or reinterpret in the current scene. Read article → ](/blog/exposition-immediate-story/)[ ![](/_astro/blurb-synopsis-story-ledger.DsAU8jL__ZQG7Vc.webp) Book Blurb vs Synopsis: Build Promise and Proof Compare a book blurb with a synopsis, then use a promise-to-payoff ledger to write reader-facing copy and a spoiler-complete submission document. Read article → ](/blog/blurb-vs-synopsis/)[ ![](/_astro/dialogue-tag-clarity.DA55unOs_Z1JwpJY.webp) A Clarity Test for Every Dialogue Tag Test dialogue tags by speaker clarity, reset points, placement, action, and rhythm so readers never need to reconstruct who spoke. Read article → ](/blog/dialogue-tag-clarity/) ### Writing Tips & First Edition Access. Craft guides and product updates in your inbox. No spam, ever · Unsubscribe in one click ## Finish your story. Keep your tools. One payment and it is yours. No subscription, no account, no telemetry. Watch the full walkthrough before you buy. [ Buy NovelOS, $45 once ](https://buy.novelos.studio/) One-Time Payment No Telemetry See It First Releases are logged on the [changelog](/changelog/). What comes next is on the [roadmap](/roadmap/). Both are public and dated.