Google is updating the color picker in Sheets and Slides with a small quality of life change to help you work with your custom themes more easily.
In the new picker, theme colors have been moved to the top for easier access. At the same time, the theme placeholder now shows the name of the currently selected theme so you know exactly what you've got enabled currently.
If you want to use a branded theme, this will make it much easier to implement across your various files.Read More
Google's redesigned Sheets and Slides color picker prioritises your themes was written by the awesome team at Android Police.