Brand Colors is a capability that's part of Brand Kit, a premier feature available to customers who have subscribed to one of the plans here - https://typito.com/pricing. It lets you pick 10 of your brand color so that you can easily access them while editing videos on Typito.
If you haven't subscribed to a plan, you will find the Brand Kit view in Settings look like this:
How to select a Brand Color:
It's pretty simple. You can click on the (+) icon that's present in the Custom Colors section and it would show up a color picker interface that looks like below:
You could either use the color picker UI (the white knobs) or use the hex code field to add the color. Once the color is decided, you can just click "Add to brand colours" to add it to the Brand Color.
If you want to change an already existing color, just click on it again in the Custom Color section, choose an appropriate color and click on the "Update" button.
Now that the color is selected, you can try it out while editing the video under the Brand Colors among the color palettes:
That's how you can add colors to your Brand Color palette!