Primitive type: color

--Syntax--
In files and scritps a color can be represented as
<pre><span class='hl-kw'>rgb</span>(<i>red_component</i>, <i>green_component</i>, <i>blue_component</i>)</pre>
where red_component, green_component and blue_component are numbers between 0 and 255 (inclusive).

In some places MSE also supports colors with a transparency value, notated as
<pre><span class='hl-kw'>rgba</span>(<i>red_component</i>, <i>green_component</i>, <i>blue_component</i>, <i>alpha_component</i>)</pre>
An alpha value of @0@ indicates a transparent color, an alpha value of @255@ is completely opaque.

--Named colors--
MSE also supports named colors, for instance @"white"@ is the same as @rgb(255,255,255)@.
For a full list of supported colors, see [[http://www.wxwidgets.org/manuals/stable/wx_wxcolourdatabase.html|the wxWidgets documentation]].
In addition, the named color @"transparent"@ stands for the completely transparent color, @rgba(0,0,0,0)@.

In scripts named colors are represented as [[type:string]]s.

--Examples--
For example:
! Code			Represents		<<<
| @rgb(255,255,255)@	white			<div style="border:1px solid black; background:white;width:30px;height:15px;"> </div>
| @rgb(0,0,0)@		black			<div style="border:1px solid black; background:black;width:30px;height:15px;"> </div>
| @rgb(255,0,0)@	red			<div style="border:1px solid black; background:red;  width:30px;height:15px;"> </div>
| @rgb(0,255,0)@	green			<div style="border:1px solid black; background:rgb(0,255,0);width:30px;height:15px;"> </div>
| @rgb(0,0,255)@	blue			<div style="border:1px solid black; background:blue; width:30px;height:15px;"> </div>
| @rgba(0,0,0,0)@	transparent		<div style="border:1px solid black; width:30px;height:15px;text-align:center;">over</div>
| @rgba(255,0,0,128)@	transparent red		<div style="border:1px solid black; background:rgb(255,128,128);color:rgb(128,0,0);width:30px;height:15px;text-align:center;">over</div>
| @rgba(0,0,255,192)@	transparent blue	<div style="border:1px solid black; background:rgb(64,64,255);color:rgb(0,0,192);width:30px;height:15px;text-align:center;">over</div>
