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+The text printer in Emerald is very versatile and has a lot of control codes. But it seems Game Freak skipped implementing one of the control codes in the release of the game, since it was likely never used. There's a control code that pokeemerald calls the `SIZE` control code, allowing you to change fonts (and thus font size) mid-text. But there's another control code right after that called the `RESET_SIZE` control code that does nothing. Here's how to implement it:
+
+In the text.c, find the function `RenderText` and add the following:
+```diff
+ case EXT_CTRL_CODE_SIZE:
+ subStruct->glyphId = *textPrinter->printerTemplate.currentChar;
+ textPrinter->printerTemplate.currentChar++;
+ return 2;
+ case EXT_CTRL_CODE_RESET_SIZE:
++ subStruct->glyphId = textPrinter->printerTemplate.fontId;
+ return 2;
+```
+
+Further down the same file, find the function `GetStringWidth` and add the following as well:
+```diff
+ case EXT_CTRL_CODE_ENG:
+ isJapanese = 0;
+ break;
+ case EXT_CTRL_CODE_RESET_SIZE:
++ if (letterSpacing == -1)
++ localLetterSpacing = GetFontAttribute(fontId, FONTATTR_LETTER_SPACING);
++ else
++ localLetterSpacing = letterSpacing;
++ break;
+ case EXT_CTRL_CODE_PAUSE_UNTIL_PRESS:
+```
+
+Both of these will reset the font to whatever the previous font was when the text printer comes across a `RESET_SIZE` control code. \ No newline at end of file