Fonts

JetBrains Mono font (monospace) taken from JetBrains
Inter font (default) taken from Inter
Both of these above two are under SIL Open Font License 1.1 (see OFL.txt)
Launcher icons taken from fontello (you can see the raw zip file for yourself at fontello-*.zip)

Icon

QuantumLauncher logo made by Aurlt (@exsclt_35289 on Discord)

Installers

ForgeInstaller.java taken from minecraft-launcher (licensed under Apache 2.0) for connecting to Forge installer.
OptifineInstaller.java made by Mrmayman (me) for connecting to OptiFine installer.

ARM64 Support

lwjgl_arm64 taken from https://github.com/theofficialgman/piston-meta-arm64
minecraft_arm taken from https://github.com/Kichura/Minecraft_ARM, licensed under MIT (no attribution)

ASCII

ASCII art for QuantumLauncher, to be shown as an intro message to the terminal. Licensed under public domain.

FreeDesktop

Various files for deb packaging

Screenshots

Various screenshots for use in README and changelogs. These are licensed under public domain.