Quick answer
KitForge uses a theme app extension with an auto bundle card app embed for product pages, optional manual section blocks, and configurable widget presets (clean, compact, premium, playful) plus FBT and QB display styles.
- App embed is the default integration — enable it first.
- Manual blocks are for placement control, not the default onboarding path.
- Widget presets and display styles are configured per offer in admin.
- Re-enable embed after theme changes — embeds do not always carry over.
Standalone vs inline placement
Fixed kits can render as standalone widgets on dedicated products or inline on component PDPs. Placement mode affects which product pages show the offer and how coexistence interacts with FBT and QB on the same PDP.
Live preview parity
KitForge admin preview uses the same widget renderer as the storefront — what you see in preview matches theme app extension output when the embed is active.
Theme CSS can still affect surrounding spacing; preview validates widget internals, not entire theme layout.
Final recommendation
KitForge theme app extension delivers bundles without custom code. App embed for default PDP placement; manual blocks and presets when you need finer control.
If you want this kind of offer to feel native to the buying journey, Kitforge Bundles is built around that exact problem: turning related Shopify products into clearer bundle offers before the shopper reaches checkout.
FAQ
Does KitForge edit my theme Liquid files?
No — theme app extensions inject via Shopify's supported embed and block APIs.
Which preset for a minimalist brand?
Clean or compact presets reduce visual weight. Preview premium if you need more imagery emphasis.