type alias BackgroundFillimport { type BackgroundFill } from "https://dotland.deno.dev/x/grammy@v1.27.0/types.ts"; This object describes the way a background is filled based on the selected colors. Currently, it can be one of BackgroundFillSolid BackgroundFillGradient BackgroundFillFreeformGradient definition: BackgroundFillSolid | BackgroundFillGradient | BackgroundFillFreeformGradient