Hi,
A color transform is a modification to related properties of an underlying color.
Related properties means that can change the colour in different ways.
For example, transparency is a property that is related to color. Color transforms
are specified as child tags off any color model's tag.
Colour transforms can be applied for fill color,line color,font colour etc.
The following are the allowed colour transforms.How they are represented in xml is
also described alongwith.
1.tint:
Yields a lighter version of its input color. A 10% tint is 10% of the input color combined with 90% white.
val 0 means it will be 100% white.Possible values are from 0 to 100000
<a:schemeClr val="accent1">
<a:tint val="0"/>
</a:schemeClr>
2.shade:
Yields a darker version of its input color. A 10% shade is 10% of the input color combined with
90% black.
<a:schemeClr val="accent1">
<a:shade val="50000"/>
</a:schemeClr>
3.comp:
from spec ECMA-376:
[that the color rendered should be the complement of its input color with the complement
being defined as such. Two colors are called complementary if, when mixed they produce a shade of grey. For
instance, the complement of red which is RGB (255, 0, 0) is cyan which is RGB (0, 255, 255).]
<a:schemeClr val="accent1">
<a:comp/>
</a:schemeClr>
4.alpha:
specifies its input color with the specific opacity, but with its color unchanged.
Possible values are from 0 to 100000
<a:srgbClr val="00FF00">
<a:alpha val="50000"/>
</a:srgbClr>
Other possible colour transforms are:lum,hue,sat,red,green,hue,blueMod,blueOff etc.
Mallika