Apps with 'Themes' feature

Open-source browser with Gecko engine, supporting HTML add-ons and providing privacy features like Enhanced Tracking Protection and third-party cookie blocking.

Local-first, privacy-focused notebook supporting Markdown and Org mode, offline use, encrypted backup, extensible with plugins, and more.

Plasma is a cross-device work environment by the KDE Community where trust is put on the user's capacity to best define their own workflow and preferences.

An easy and elegant way to use your computer, GNOME is designed to help you have the best possible computing experience.

Manages and organizes music libraries, playlists, and folders, supports podcasts and web radio, advanced tagging, CD ripping, device sync, and multiple audio formats.

The Kate project develops two main products: KatePart, the advanced editor component which is used in numerous KDE applications requiring a text editing component, and Kate, a MDI text editor application.

Creating and editing subtitles.

Web-based customizable desktop environment for Windows 10/11 with tiling window management, widget personalization, theme adjustments, and taskbar layouts.

Manage time efficiently, organize tasks with lists and tags, and set priorities. Share task lists, attach files, and use collaboration tools.

DeviantArt was created to entertain, inspire, and empower the artist in all of us. Founded in August 2000, deviantART is the largest online social network for artists and art enthusiasts with over 13 million registered members, attracting 35 million unique visitors per month.

Redesign the web with Stylus, a user styles manager.

Considering that most text editors are eather too heavy or look too old, the author came up with Notepads, designed to be a modern-looking UWP app.

TagScanner is a multifunction program for organizing and managing your music collection. It can edit tags of mostly state-of-the-art audio formats, rename files based on the tag information, generate tag information from filenames, and perform any transformations of the text...

Advanced music player with equalizer, customizable UI, Hi-Res Output, playlist management, lyrics display, and supports diverse audio formats.

HTTP Toolkit is a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools and automatic interception for clients from Docker to Android to iOS.

Discover and share artwork through an engaging platform with tagging, ratings, and customizable sharing options for a tailored experience.

Find apps, extensions, and themes for enhancing Google Chrome, easily installable via a user-friendly platform supporting both free and paid content.

VNDB.org strives to be a comprehensive database for information about visual novels.

Create, Convert, Review and Edit PDF Documents on Windows, macOS, and Linux.

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

AniDB stands for Anime DataBase. AniDB is a non-profit anime database that is open freely to the public. This means that all users have the ability to add or edit information. Although there are many features available to registered users, AniDB's mission has three main...

Midnight Lizard web-extension for Google Chrome™ and Mozilla Firefox™ provides custom color schemes for all websites.

Pining for simpler times? RetroBar teleports you back in time by replacing your modern Windows taskbar with the classic Windows 95, 98, Me, 2000, XP, Longhorn, or Vista style.

This app is a virtual keyboard for Android. The main features are easy typing of every ASCII character using the swipe gesture, dead keys for accents and modifier keys and the presence of special keys (tab, esc, arrows, etc..).

Takes a few hours to catch on, but makes the most professionally typset documents with a large number of amazingly useful features not available from other types of presentation software. For presentations, consider the Beamer or Prosper document class.