index

scrbl/rgba.scrbl

@@ -16,7 +16,7 @@ RGBA color support used by the webview library.
 This module exports a transparent @racket[rgba] structure together with
 predicates and conversion procedures for working with CSS-style color values.
 
-@section{Overview}
+@section[#:tag "rgba-overview"]{Overview}
 
 An @racket[rgba] value represents a color using red, green, blue, and alpha
 components.
@@ -35,7 +35,7 @@ The intended external representation is the CSS form:
 "rgba(r,g,b,a)"
 ]
 
-@section{Predicates}
+@section[#:tag "rgba-predicates"]{Predicates}
 
 @defproc[(rgba/color? [v any/c]) boolean?]{
 
@@ -68,7 +68,7 @@ components. The field @racket[a] is the alpha component.
 The structure is transparent.
 }
 
-@section{Conversion}
+@section[#:tag "rgba-conversion"]{Conversion}
 
 @defproc[(rgba->string [c rgba?]) string?]{