コンテンツ区切り + 中央揃えテキスト構文 + フォントカラー

[Steven]

The div align is whitelisted, you use this without plugin or theme component.

<div align="center">

Your text

</div>

I don’t think the same goes for the color. But you could use the wrap bbcode. You can explore this thread to gather some useful infos

BBcode color tags in a theme

Continuing the discussion from Discourse BBCode color Can this be offered as a theme component? This would allow customers on managed instances to install it. I also feel like there should be a more intuitive way of selecting color for a text, such as a color picker.