Many popular packs aim to match the game's original art style, ensuring the items "click" with the official graphics.
To use these packs, you must place the .package files into your Documents > Electronic Arts > The Sims 4 > Mods folder and enable "Custom Content and Mods" in the game’s "Other" options menu. Alternative Meaning: SMM Content BEST CC FINDS | Sims 4 Custom Content Haul (Maxis Match)
Many creators host their large bundles on Patreon or Tumblr for early access or free public release.