Relevant Products: Exclaimer Cloud - Signatures for Office 365 | Exclaimer Cloud - Signatures for G Suite | Signature Manager Exchange Edition | Signature Manager Outlook Edition
You would like to know more about the dark mode effect on email signatures?
Dark mode is an accessibility setting that changes the colour scheme of an interface, minimising the amount of blue light to enhance readability and reduce eye strain. This is great for anyone who is light sensitive and working late hours.
To check if dark mode settings in HTML has been set for background colour and font colours, use:
If a colour is set, the setting will reverse the colours; for example, black will change to white and white will change to black.
Unfortunately, we cannot override the dark mode settings ourselves, but there are recommended steps you can take to ensure the signature works correctly.
- Avoid background colours where possible, white can become black and black can become white, as though they are inverted. Anything off white can become grey.
- Use images that have a transparent background where applicable, to allow the background to show through the image.
- If text is used as an image, it is recommended to add a white stroke to the image before it is added to the template.
- Rendering the signature as a bitmap image can help to resolve the issue if you are using a background colour, such as white. This will embed the colours used in the signature, resulting in the signature staying the same at all times.
However, this can cause the signature to become an attachment or stripped out of forward and reply emails. Hyperlinks may not work if you like to see the signature when composing an email, for example, Hyperlinks are missing from my signature article.