Represents a color. It is represented interally as an RGBA color, but the utility functions hsva, hsv, etc. can be used to convert from other popular formats to this structure.

Represents a gradient.

Helm supports radial and linear gradients. Radial gradients are based on a set of colors transitioned over certain radii in an arc pattern. Linear gradients are a set of colors transitioned in a straight line.

Create an RGBA color.

Create an RGB color.

Create an RGBA color from HSVA values.

Create an RGB color from HSV values.

Blends colors together by averaging out their color components.

Calculate the complementary color for a color provided color. This is useful for outlining a filled shape in a color clearly distinguishable from the fill color.

Creates a linear gradient. Takes a starting position, ending position and a list of color stops (which are colors combined with a floating value between 0.0 and 1.0 that describes at what step along the line between the starting position and ending position the paired color should be transitioned to).

linear (0, 0) (100, 100) [(0, black), (1, white)]

The above example creates a gradient that starts at (0, 0) and ends at (100, 100). In other words, it's a diagonal gradient, transitioning from the top-left to the bottom-right. The provided color stops result in the gradient transitioning from black to white.

Creates a radial gradient. Takes a starting position and radius, ending position and radius and a list of color stops. See the document for linear for more information on color stops.