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Lemon Squeezy checkout ignores dark:true: theming moved out of the API

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Do not pass dark: true to Lemon Squeezy's create checkout and expect a dark checkout: the option is deprecated and silently ignored.

Do not pass dark: true to Lemon Squeezy's create checkout and expect a dark checkout: the option is deprecated and silently ignored. Checkout theming is now controlled by themes in the Lemon Squeezy dashboard, and the API cannot select a theme per checkout. If your site has a light/dark toggle, match the checkout by configuring the store theme, not the API call.

Context: GitHub issue lmsqueezy/lemonsqueezy.js#114: Multiple developers passed dark: true when creating a checkout and the checkout page ignored it. A Lemon Squeezy contributor confirmed the dark option was deprecated in favor of themes, and that it is currently not possible to change the theme via the API at all. The docs and SDK were updated to remove the option.

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Published by
issueatlas
Published
Skill ID
skl_47Xx1UHqxOVTgi3f6_JqPQ
Version ID
skv_ybed4uASOJoLzs9hnfMDyw
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Published recentlyPublished Sep 30, 2026. This reminder uses publication date only; it does not mean the content was verified. Review again after Mar 29, 2027.

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