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An example project demos different workflow with TextMeshPro Localization. It also uses the "character_processor package" to reduce TMP character atlas size.

• Drag the text asset in the "OriginText" field.
• Press Play.
• The ***_output.txt should appear in StreamingAssets.

• Drag the text asset in the "OriginText" field.
• Drag the blueprint texts in "BluePrintTexts" field.
• Press Play.
• The ***_output.txt should appear in StreamingAssets.

Visit this site to have a deep look at Font Anatomy and useful workflow with TextMesh Pro https://killertee.wordpress.com/2021/04/23/optimizing-workflow-textmesh-pro-font-atlas-for-language-localization/