UnityGame/Library/PackageCache/com.unity.ugui/Documentation~/TextMeshPro/RichTextLetterCase.md

Lowercase, Uppercase, and Smallcaps

The <lowercase>, <uppercase>, <allcaps> and <smallcaps> tags alter the capitalization of your text before rendering. The text in the Text field remains as you entered it.

• The <lowercase> and <uppercase> tags work as you would expect, converting to all capitals or no capitals before rendering.

• The <allcaps> tag is functionally identical to <uppercase>.

• The <smallcaps> tag works like <uppercase>, but also reduces the size of all characters that you entered in lowercase.

Example:

<lowercase>Alice and Bob watched TV.</lowercase>
<uppercase>Alice and Bob watched TV.</uppercase>
<allcaps>Alice and Bob watched TV.</allcaps>
<smallcaps>Alice and Bob watched TV.</smallcaps>

Modifying capitalization.