\begin{description}
\item[Spill saturation:] Similar to Saturation Start, indicates the starting point from which spill suppression begins. It works if Saturation Start is > 0 because it acts only from that value, with the effect of retracting the starting point moving away from the Saturation Start value toward the center of the color wheel (white). This has the consequence of creating a small area beyond the edge of the wedge where spill suppression acts. Generally you set it with a small random value > 0 and then return to it after setting Spill Angle.
\item[Spill Angle:] Spill Angle is the main parameter of spill suppression because it causes a very noticeable effect. Basically, it is an area that extends beyond the edge of the mask, increasing its angle and thus its size. In this area (which is a gradient) pixels of the reflections of the key color (green, for example) are mixed with pixels of the adjacent color (cyan on one side and yellow on the other, because we always refer to the HSV color wheel). The suppression effect replaces green pixels with adjacent ones, taking into account the gradient. This parameter, in addition to the spill saturation, softens the edges of the mask without resorting to desaturation to gray or white of the green pixels, which create a more visible detachment. It should not be overdone so as not to compromise the color balance of the entire figure.
\begin{description}
\item[Spill saturation:] Similar to Saturation Start, indicates the starting point from which spill suppression begins. It works if Saturation Start is > 0 because it acts only from that value, with the effect of retracting the starting point moving away from the Saturation Start value toward the center of the color wheel (white). This has the consequence of creating a small area beyond the edge of the wedge where spill suppression acts. Generally you set it with a small random value > 0 and then return to it after setting Spill Angle.
\item[Spill Angle:] Spill Angle is the main parameter of spill suppression because it causes a very noticeable effect. Basically, it is an area that extends beyond the edge of the mask, increasing its angle and thus its size. In this area (which is a gradient) pixels of the reflections of the key color (green, for example) are mixed with pixels of the adjacent color (cyan on one side and yellow on the other, because we always refer to the HSV color wheel). The suppression effect replaces green pixels with adjacent ones, taking into account the gradient. This parameter, in addition to the spill saturation, softens the edges of the mask without resorting to desaturation to gray or white of the green pixels, which create a more visible detachment. It should not be overdone so as not to compromise the color balance of the entire figure.