Rubik Variant Images Theme Compatibility

Rubik Variant Images on Eight Themes: Flow, Envy, Capital & More (2026)

April 17, 2026

Eight Themes is a Shopify studio based in Bristol, UK. They build themes and they also build the Bundle Builder app, which is worth mentioning because it tells you something about the team: they understand Shopify app architecture, not just theme design. Their theme catalog has 6 entries, and the flagship ones are serious contenders. Flow has 377 reviews and a 91% positive rating at $380. Envy sits at 266 reviews with 90%. These are not throwaway themes.

But even well-built themes cannot escape Shopify’s core limitation. One image per variant. That is it. You sell candles in 8 scents with custom label photography for each? Shopify shows all 24 photos regardless of which scent the customer picked. The platform has had this limitation for years, and it is still here in 2026. Why? Nobody knows.

Rubik Variant Images supports all 6 Eight Themes with native selector code. Assign multiple images per variant, filter the gallery in real time, and render image or color swatches inside Shadow DOM so nothing conflicts with the theme’s CSS.

Eight Themes: who they are

Eight Themes is a Bristol, UK studio that builds both Shopify themes and apps. Their themes range from $350 to $390, placing them firmly in the premium tier. They also build the Bundle Builder app, which handles product bundling. The fact that they work on both sides (themes and apps) gives them a unique understanding of how apps interact with theme code.

Their themes use custom variant picker implementations that differ from Dawn. Not wildly different, but different enough that apps targeting only Dawn selectors will miss the mark. We have dedicated selector configurations for each Eight Themes theme in our codebase. 371 themes total, and every Eight Themes entry is in there.

Flow ($380, 377 reviews, 91%)

Flow is the most popular Eight Themes theme by review count. 377 reviews at $380 with a 91% positive rating. It is built for stores with large catalogs, strong visual identity, and a focus on conversion. The product page layout is flexible with multiple gallery styles.

Here is what makes variant image filtering important on Flow specifically: the theme supports multiple gallery layouts (grid, slider, stacked), and all of them look terrible when they are stuffed with 20+ unfiltered images from multiple variants. A slider with 24 slides? Customers give up. A grid with 24 thumbnails? Visual chaos.

Rubik filters the gallery down to only the images assigned to the selected variant, regardless of which Flow gallery layout you use. We have tested all of them. Pick “Ocean Blue” and see 4 ocean blue photos. Not 4 ocean blue plus 16 from other colors.

Envy ($380, 266 reviews, 90%)

Envy has 266 reviews and a 90% positive rating at $380. It targets fashion and lifestyle stores with editorial-style product pages and strong collection page layouts.

Fashion stores are the single biggest use case for variant image filtering. Not even close. A t-shirt in 10 colors with 3 photos each means 30 images per product. A dress in 6 colors with 5 photos each means 30 images. Without filtering, customers scroll through an endless gallery trying to find the photos that match the color they actually selected. It is bad UX, and it is a real driver of returns (“this looked different from the photo I thought was for this color”).

We see this pattern constantly in support. And it is one of the most common reasons merchants find Rubik in the first place.

Capital ($380, 130 reviews)

Capital is Eight Themes’ business-oriented theme. $380, 130 reviews. Built for stores with large inventories and complex product structures. Think electronics, B2B wholesale, home improvement.

These types of stores often have products with multiple option types: Color, Finish, Size, Voltage, Material. Rubik supports assigning images to multiple options, so a product with “Color: Red + Material: Leather” can show different images than “Color: Red + Material: Fabric”. Most other apps only handle one option level.

Fresh ($350)

Fresh is Eight Themes’ food-oriented theme at $350. Clean layouts, recipe sections, nutritional information blocks. Food and beverage stores use variants for flavors, sizes, and packaging types, and each one typically has unique photography.

Protein powder in Chocolate, Vanilla, and Berry. Each flavor has distinct packaging. Without Rubik, a customer picks “Berry” and still sees Chocolate and Vanilla packaging photos in the gallery. That creates confusion at the exact moment when the customer should be adding to cart.

Momentum ($380)

Momentum is designed for active and lifestyle brands. $380. Bold typography, motion effects, dynamic product pages. The sort of theme where the visual experience is the product.

Active brands often have product lines with color seasons. Spring collection: Coral, Sage, Sky. Fall collection: Rust, Charcoal, Forest. Each colorway has its own product photography style. Rubik keeps those images organized by variant so the gallery matches the selection. Always.

Influence ($390)

Influence is Eight Themes’ newest and most expensive theme at $390. It leans into influencer marketing and social proof, with UGC sections and review integration. The product page is conversion-focused.

At $390, this is near the top of the Shopify theme pricing range. Merchants paying this much for a theme expect everything to work properly. Having an unfiltered gallery with 30 photos from 10 different colorways… that sort of undermines the $390 investment. Just saying.

Rubik Variant Images drag and drop image assignment interface

All Eight Themes at a glance

Theme	Price	Reviews	Rating	Best for	Rubik support
Flow	$380	377	91%	Large catalogs, visual stores	Yes, native
Envy	$380	266	90%	Fashion, lifestyle	Yes, native
Capital	$380	130	–	Business, B2B	Yes, native
Fresh	$350	–	–	Food, beverage	Yes, native
Momentum	$380	–	–	Active, lifestyle	Yes, native
Influence	$390	–	–	Influencer, social proof	Yes, native

Setting up Rubik on any Eight Themes theme

The process is the same across all 6 themes. No code, no Liquid edits, no developer needed.

Install Rubik Variant Images from the Shopify App Store.
Open the Shopify theme editor and turn on the Rubik app embed. The app auto-detects your Eight Themes theme.
Open a product in the Rubik dashboard. Drag images onto variants manually, or hit AI auto-assign to let the AI figure out which images belong to which variant.
Enable swatches. Three types available: image thumbnails, color circles, or pill buttons. You can mix types per option (images for Color, pills for Size).
Preview the product page. Gallery filters instantly on variant selection.

Having trouble? Check the variant images not showing fix. Nine times out of ten, it is a browser cache or a missing app embed toggle.

Eight Themes and Bundle Builder: does it conflict?

Eight Themes also builds the Bundle Builder app. If you are running one of their themes plus Bundle Builder, you might wonder if adding Rubik Variant Images creates conflicts. Short answer: no.

Rubik Variant Images operates on the product page gallery and variant picker. Bundle Builder operates on the cart and product bundling flow. Different DOM targets, different JavaScript scope, different purpose. We have tested both running simultaneously and they do not interfere with each other.

If you do run into something unexpected (rare, but possible with any app combination), our support responds fast. This is one of the most common things people mention in our App Store reviews.

Pairing with Rubik Combined Listings

Rubik Variant Images works on the product page. Only the product page. It does not add swatches to collection pages, and it does not group separate products together. Those are different problems that need a different app.

Rubik Combined Listings handles collection page swatches and product grouping. Sell the same jacket in 6 colors as 6 separate products, group them with RCL, and show color swatches on every collection page. Each color gets its own URL (good for SEO), its own set of images, its own inventory tracking. Customers click a swatch on the collection page, land on the right product page, and Rubik Variant Images handles the gallery filtering from there.

Both apps support all Eight Themes themes. Metafield-based loading, no external API calls, Shadow DOM rendering. They are built to work together, and a surprising number of stores run both.

Read the complete color swatches guide on Craftshift for the full breakdown of how product page and collection page swatches work together.

“This is by far the best variant app I have tried, I deleted maybe 7 others after a slew of issues. Wonderful support as well!”
Anonymous merchant, 5.0 rating, February 2026 , Rubik Variant Images on the Shopify App Store

Try the live demo store, watch the setup tutorial, or read the getting started guide.

Try Rubik Variant Images free

Try Rubik Combined Listings free

Frequently asked questions

Does Rubik Variant Images work on Flow theme?

Yes. Flow is fully supported with native auto-detection. Rubik works with all of Flow’s gallery layout options (grid, slider, stacked).

Does Rubik work on Envy theme?

Yes. Envy has dedicated selector code in Rubik. Install, enable the embed, assign images, and the gallery filters on variant selection.

Does Rubik conflict with Bundle Builder?

No. Rubik Variant Images and Bundle Builder target different parts of the page. Rubik handles the product gallery and variant picker, Bundle Builder handles product bundling and cart logic. They work independently.

Which Eight Themes theme is best for variant-heavy products?

Flow and Capital are best suited for large catalogs with many variants. Envy works well for fashion. Fresh is ideal for food with flavor variants. But Rubik works equally well on all six, so choose based on your store’s design needs, not variant image support.

How much does Rubik cost?

Flat pricing: Free (1 product), Starter $25/month (100 products), Advanced $50/month (1,000 products), Premium $75/month (unlimited). AI credits included on every plan.

Can I use Rubik on page builders with Eight Themes?

Yes. If you use a page builder like GemPages, PageFly, EComposer, or Beae alongside an Eight Themes theme, Rubik supports all of them. See the variant images FAQ for the full list.