Hi, accountingnwt.

Thanks for reaching out to us. We understand the importance of visibly seeing your text. However, the dark mode isn't available in QuickBooks Online (QBO) as of now.

To help improve your experience with QBO, your valuable feedback will be shared with our Product Development Team.

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1. Select the Gear icon, then choose Feedback.
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Please let us know if you have additional questions about this or anything else. I'll be more than happy to answer them. Have a great day ahead!