How to Install and Apply Suren's Sophisticated Storage Resource Pack
Placing the Pack in Your Resource Pack Folder
Suren's Sophisticated Storage Resource Pack is a client-side resource pack, so it does not need to be installed on a server. Download the pack file and drop it into your Minecraft resourcepacks folder. You can reach this folder from the game's Options menu by opening Resource Packs and clicking "Open Pack Folder." Once the file is there, it will appear in the left-hand list of available packs.
Activating and Ordering the Pack
Move the pack from the left column to the right column by clicking its arrow. If you use other packs that also touch chest textures, place Suren's pack above them in the list so its textures take priority. Click Done to apply. The change is immediate and does not require restarting the game or reloading the world.
Verifying the Textures Changed
Place a Sophisticated Storage chest and look at it up close. You should see cleaner lines, smoother shading, and a more polished finish compared to the default mod textures. If nothing changed, confirm the pack is enabled, that it sits above conflicting packs, and that you are looking at a Sophisticated Storage chest rather than a vanilla one. Because this is purely visual, your existing chests, their contents, and any upgrades are unaffected.