# FAQ ## Who has rights to the data? Your data is yours. We respect your privacy and when you create an account you don't grant us any rights to your data, except for the ones that need for the application functioning. We don't use your data for any commercial or non-commercial purposes and share it with nobody. You can learn more in the [terms of service](https://celly.ai/terms). ## How can I change the white balance? App Settings -> Manual white balance = Yes -> Tap **Gray Card** button or change with sliders. ## I have shadows around the borders It's OK if you have black corners (the application automatically crops 15% from each border). But if the adapter not ideally fits with the eyepiece, you can get additional shadows around the borders. This affects the scan quality and cell counts. To avoid the problem: * try to move the adapter * increase the crop level: App Settings -> Cropping --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.celly.ai/getting-started/faq.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.