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add missing info on set-delta-background (related to PR 9886)

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svn: r12239
This commit is contained in:
Matthew Flatt 2008-11-05 00:40:19 +00:00
parent 5026445695
commit 01354149ee
1 changed files with 4 additions and 1 deletions
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5
collects/scribblings/gui/style-delta-class.scrbl
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@ -444,7 +444,10 @@ Makes the delta encode a background color change to match the absolute
@scheme[0.0] in the result of @method[style-delta%
get-background-mult], and it sets the additive values in the result
of @method[style-delta% get-background-add] to the specified color's
values. The return value of the method is the delta itself.
values. In addition, it also disables transparent text backing by
setting @scheme[transparent-text-backing-on] to @scheme[#f] and
@scheme[transparent-text-backing-off] to @scheme[#t].
The return value of the method is the delta itself.
For the case that a string color name is supplied, see
@scheme[color-database<%>].