Inkwell Vibrant Shadows is a shader pack, so it runs through a shader loader such as Iris or OptiFine rather than the normal resource pack menu. If the pack file is already in place, all you need to do is switch it on.
Activating the pack
1. Launch Minecraft with Iris or OptiFine loaded.
2. From the title screen or the pause menu, open Options → Video Settings.
3. Click Shader Packs (OptiFine labels it Shaders...).
4. Confirm Inkwell Vibrant Shadows appears in the list. If it does not, click the button that opens the shaderpacks folder, make sure the pack file is inside that folder, then return to the menu.
5. Select Inkwell Vibrant Shadows and click Apply (Iris) or Done (OptiFine).
6. Load into a world. Blocks and mobs should now have bold cartoon shading and bright lighting.
What you should notice
- Comic-book shading. Clean, cartoon-style shading on blocks and mobs.
- Vanilla shapes and textures stay familiar. The pack adds bold visual accents rather than replacing the vanilla look.
- Bright, clean lighting in every biome. Deserts, forests, snowfields and the rest all get the same vivid treatment.
If the world looks exactly like plain vanilla, go back to the Shader Packs screen and check that the pack is highlighted and that shaders are not set to Off or (internal).