/**
 * Color utilities for workflow event markers
 */
import type { Event } from '@workflow/world';
export interface EventColorPalette {
    /** Color of the diamond/marker itself */
    color: string;
    /** Background color for hover info popup */
    background: string;
    /** Border color for hover info popup */
    border: string;
    /** Text color for event name in hover popup */
    text: string;
    /** Secondary text color for timestamp in hover popup */
    secondary: string;
}
/**
 * Get the color palette for an event based on its type
 * - Red for failures (step_failed, run_failed)
 * - Orange/yellow for retries (step_retrying)
 * - Purple for webhook-related events
 * - Blue otherwise (default)
 */
export declare function getEventColor(eventType: Event['eventType']): EventColorPalette;
/**
 * Determine whether to show a vertical line for an event
 * - Show vertical lines for hook-related events
 * - Hide vertical lines for all other workflow events by default
 */
export declare function shouldShowVerticalLine(eventType: Event['eventType']): boolean;
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