[DRAFT] update sharepoint site theming docs

[RongqiZ]

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What's in this Pull Request?

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[learn-build-service-prod]

PoliCheck Scan Report

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[learn-build-service-prod]

Learn Build status updates of commit 8ea662e:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

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[learn-build-service-prod]

Learn Build status updates of commit 6bab3ab:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

Learn Build status updates of commit 8742409:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

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[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

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[learn-build-service-prod]

Learn Build status updates of commit 48f1316:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
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[learn-build-service-prod]

Learn Build status updates of commit 51e16fb:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-rest-api.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
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[learn-build-service-prod]

Learn Build status updates of commit 2bbe35c:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-rest-api.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 13945a2:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-rest-api.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 80dac3f:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-rest-api.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 3bae9d8:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-rest-api.md	✅Succeeded	View

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 88aa827:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/declarative-customization/images/default-themes.png	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-csom.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-json-schema.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-overview.md	✅Succeeded	View
docs/declarative-customization/site-theming/sharepoint-site-theming-rest-api.md	✅Succeeded	View

For more details, please refer to the build report.