/// <summary>
/// Removes usage occurrence of color.
/// </summary>
/// <param name="index">Index of pixel in bitmap where this color is used.</param>
/// <returns>New color's usage occurrences count.</returns>
/// <remarks>Removes only first found index occurrence (if there are duplicates).</remarks>
internal int RemoveOccurrence(int index)
{
UsageOccurrences.Remove(index);
return OccurrencesCount;
}
/// <summary>
/// Adds new usage occurrence of color.
/// </summary>
/// <param name="index">Index of pixel in bitmap where this color is used.</param>
/// <remarks>Can create duplicates!</remarks>
internal void AddOccurrence(int index)
{
UsageOccurrences.Add(index);
}
