A couple of bookmarks I'm leaving here for websites used to customize i3.

My dotfiles are here.

§ i3-gaps

• thomashunter.name/i3-configurator (generate i3 color schemes)
• paletton.com (generate color palette)
• terminal.sexy (generate i3 color schemes, but using .xinitrc which makes it more portable)
• github.com/LukeSmithxyz/voidrice (a guy)

§ Wal

• github.com/dylanaraps/pywal (Generate and change color-schemes on the fly. not used after all)

§ Compton

• arcolinux.com/all-information-regarding-compton-and-compton-configurator
• github.com/yshui/compton (compositor manager when using i3 to have transparencies)
• wiki.archlinux.org/index.php/compton (the obviously mandatory Arch wiki article)

§ simple terminal

• github.com/LukeSmithxyz/st (a minimal but unusable for me terminal)

§ Themes

• www.reddit.com/r/unixporn/comments/d5gmxc/i3gaps_rainy_city (awesome i3-gaps theme)