Defines classes that customize the New Item Row.
The ThemeBase class's properties provide access to different customizers, which you can adjust to change appearance settings (for example, font attributes, border and background colors, etc.) of the grid's corresponding visual elements (such as data cells, group rows, filter panel, etc.). In this example, the following customizers are used.
To apply the customization, call the ThemeManager.RefreshTheme method.
This example customizes the Light theme as it is shown in the image below.