Theming

Cardboard Museum
Periodically change wallpaper using Danbooru

Zade's wallpaper
Draw art on your home screen using coloured shapes

Mondstern Acrylic Icons
Mondstern's acrylic art as an Android icon pack

National Geographic for Muzei
National Geographic pictures for Muzei

Hex Launcher
A minimalist launcher that puts your apps under your thumb

Olauncher Clutter Free
Forked from Olauncher, -clutter, +features

Clock31
Clock + Calendar combo widget for Android

GIF Live Wallpaper
A Live Wallpaper that will display animated GIFs as your phone background.

Doodle: Live Wallpapers
Colorful live wallpapers with auto dark mode and power-efficient animations

NoLauncher
An extremely lightweight launcher.

Earth View for Muzei
Google Earth View plugin for Muzei

Vectorify da home!
Minimal app to apply wallpapers from vector images :)

launch
fast, productive and easy-to-use launcher for android

Palette-Cycle
Live Wallpaper with art from Mark Ferrari and Joseph Huckaby's Canvas Cycle Demo

SecondsClock
Clock with seconds as widget or fullscreen

Ameixa Monochrome
Icon pack

Ameixa
Port of TwelF CMTheme for many launchers

Pixel Filter
Screen dimmer, which disables individual pixels, for AMOLED screens

Snow
A monotone icon pack.

Nyan
8-bit wallpaper

LukeLauncher
A category based launcher

posidon launcher
A one-page launcher with an rss feed

Easy-phone
Accessibility helper for the elderly or visually impaired.

Slim Launcher - Fewer distractions, more life
Minimalistic launcher

Status
An overlay-based statusbar replacement

Frost
Monotone icon pack

NWS Weather Alerts Widget
Weather widget

Disabler
Disable any applications, and easily enable it
with a pretty customisable launch

Muzei Ghibli
Show pictures from Studio Ghibli (Muzei)

Sentien Launcher
Quick. Smart. Minimalist. Designed with your digital well-being in mind.