LightYellow¶

Status: Experimental

present and registered, but lightly documented and not yet covered by dedicated tests.

Description¶

LightYellow

The named colour RGBColor[1, 1, 0.85].

Examples (3)¶

Every input below was run against the current Mathilda build and its output recorded.

Applications (3)¶

A pale pastel -- distinct from Yellow

In[1]:= LightYellow
Out[1]= RGBColor[1, 1, 0.85]

An OwnValue, not an inert head -- already resolved

In[2]:= FullForm[LightYellow]
Out[2]= RGBColor[1, 1, 0.85]

Usable wherever a directive is expected

In[3]:= Head[Graphics[{LightYellow, Disk[]}]]
Out[3]= Graphics

Implementation notes¶

Definition. LightYellow is one of Mathilda's named colour constants, bound as an OwnValue: register_color("LightYellow", rgb_color(1, 1, 0.85)) in graphics_init (src/graphics/graphics_init.c) makes the bare symbol evaluate to the literal RGBColor[1, 1, 0.85] and marks it Protected. The docstring is kept centrally in src/info.c.

Representation. LightYellow evaluates to RGBColor[1, 1, 0.85], so FullForm[LightYellow] is RGBColor[1, 1, 0.85] and Head[LightYellow] is RGBColor. The exact 1 red/green components print as integers and the 0.85 blue as a real (color_component). It is a distinct constant from Yellow (RGBColor[1, 1, 0]), one of the pale Light* pastel family.

Usage & limits. As a resolved colour literal it is accepted anywhere a directive is — Graphics[{LightYellow, Disk[]}], PlotStyle -> LightYellow, a pale highlight fill. It carries no opacity; use Opacity[a] or the four-argument RGBColor for translucency.

Attributes: Protected.

References¶

Source: src/graphics/graphics_init.c
Specification index: Mathilda_spec.md

Notes & additional examples¶

Notes¶

LightYellow is the named colour RGBColor[1, 1, 0.85]. It is bound as a Protected OwnValue, so it resolves to a real colour literal wherever a bare argument is evaluated: FullForm[LightYellow] is RGBColor[1, 1, 0.85] and Head[LightYellow] is RGBColor.

The exact 1 red/green components print as integers and the 0.85 blue as a real. It is a distinct constant from Yellow (RGBColor[1, 1, 0]), one of the pale Light* pastel family. It carries no opacity; use Opacity[a] or the four-argument RGBColor[r, g, b, a].