メールコンテンツへのテーマの追加 apply-email-themes

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• TL;DR: This page explains how to create, apply, and reuse themes in the Email Designer to add brand-consistent styling on top of email content and fragments, including converting manual-styling templates into theme-compatible content.

Intents:

• Create a theme with a color palette, variants, text settings, spacing, buttons, dividers, and grid layout
• Apply a default or custom theme to an email or content template
• Switch themes and apply a specific color variant to an individual structure component
• Unlock a component’s style to override individual styling elements
• Create fragments compatible with themes and associate up to five themes with a fragment
• Convert a manual-styling email template into theme-compatible content using Generate theme from content

Glossary:

• Theme: Reusable custom styling added on top of standard templates to fit a specific brand and design language (product-specific)
• Use Themes mode: The mode selected when creating content from scratch to start with a predefined styling theme (product-specific)
• Manual Styling mode: The alternative mode; if chosen, themes cannot be applied unless you reset your email/design/fragment (product-specific)
• Compatibility mode: The mode you are in when using content created in HTML, where themes cannot be applied directly (product-specific)
• Color variant: A distinct color palette and nuance control set within a theme, such as light and dark mode (product-specific)
• Generate theme from content: A Themes action that automatically detects styling elements in a template and consolidates them into a new theme (product-specific)

Guardrails:

• This capability is in Limited Availability; contact your Adobe representative to gain access.
• If you choose Manual Styling mode, you cannot apply themes unless you reset your email, design, or fragment.
• Fragments are not cross-compatible between the Use Themes and Manual Styling modes; a fragment used in themed content must itself have been created using themes.
• When using a fragment in email content, the email theme must be one of the themes associated with the fragment; if the theme does not match, the fragment insertion is blocked.
• A fragment can have up to five compatible themes selected (from both the Adobe themes and My themes tabs); this limit is enforced for compatibility and performance reasons. The Adobe default theme cannot be removed, so you can select up to four additional custom themes.
• Content created in HTML is in compatibility mode; to apply themes you must first save it as a new template, then convert the template into theme-compatible content.
• Only email templates can be converted to be theme-compatible; individual emails cannot be converted—you must save content as a template first.
• Gmail and Yahoo! do not load external web fonts and fall back to system fonts; the only Google fonts supported by Gmail are Roboto and Google Sans. Always define fallback fonts.
• Mismatched fragment themes may cause display issues, especially in Outlook 2021 and previous versions.
• The Edit theme button (available in a content template) is not available when using themes in email contents; the specific-variant option cannot be applied to content components (only structure components).

Terminology:

• Canonical name: Theme — Acronym: n/a — variants: email theme, Adobe theme, custom theme
• Synonyms: “Use Themes mode” = “Use Themes”
• Do not confuse: “Use Themes mode” (themes can be applied) ≠ “Manual Styling mode” (themes cannot be applied unless reset)
• Do not confuse: “Adobe themes” (built-in themes) ≠ “My themes” (themes you created)

FAQ:

• Q: Is the themes capability generally available? — No, it is in Limited Availability; contact your Adobe representative to gain access.
• Q: Can I use any fragment in themed content? — Only if the fragment was itself created using themes and the email theme matches one of the themes associated with the fragment; otherwise fragment insertion is blocked.
• Q: How many themes can I associate with a fragment? — Up to five compatible themes across the Adobe themes and My themes tabs; the Adobe default theme cannot be removed, leaving up to four additional custom themes.
• Q: Can I convert an existing manually styled asset to use themes? — Only email templates can be converted (via Generate theme from content); individual emails cannot, so save your content as a template first.
• Q: What happens to my content when I switch themes? — The email content remains unchanged, but the styles update to reflect the new theme; overridden (unlocked) styling elements are not changed by the new theme.
• Q: Why might web fonts not render? — Gmail and Yahoo! do not load external web fonts and fall back to system fonts; only Roboto and Google Sans are supported by Gmail, so define fallback fonts.