Function addPresetColor

addPresetColor(presetColor): void
JMap.Application.Annotation.addPresetColor

Add the given color to the preset colors of color pickers if not already present.
Parameters
- presetColor: string
  A hex color
Returns void
Throws
if presetColor not an string or is empty

Example
```
// Add the color #D2FDDF to the preset colors
const presetColor = "#D2FDDF"

JMap.Application.Annotation.addPresetColor(presetColor)
```