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man/pmModifyStyle.Rd

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+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/styles.R
+\name{pmModifyStyle}
+\alias{pmModifyStyle}
+\title{Modify an Existing Style}
+\usage{
+pmModifyStyle(
+  style,
+  colors = NULL,
+  labelRules = NULL,
+  replace_labels = FALSE,
+  ...
+)
+}
+\arguments{
+\item{style}{A pm_style object to modify.}
+
+\item{colors}{Named list of color overrides (from pmColors() or manual list).}
+
+\item{labelRules}{Optional list of label rules to replace or add.}
+
+\item{replace_labels}{Logical. If TRUE, replaces all label rules. If FALSE,
+appends new rules. Default is FALSE.}
+
+\item{...}{Additional color overrides as named arguments.}
+}
+\value{
+A new pm_style object with modifications applied.
+}
+\description{
+Creates a new pm_style by modifying an existing one. Useful for tweaking
+preset styles without rebuilding from scratch.
+}
+\examples{
+\dontrun{
+# Start with watercolor, change water color
+my_style <- pmModifyStyle(pmStyle("watercolor"), water = "#1a3a5c")
+
+# Add label rules to minimal style
+my_style <- pmModifyStyle(
+  pmMinimal(),
+  labelRules = pmCityLabels("major-only")
+)
+
+# Multiple modifications
+my_style <- pmModifyStyle(
+  pmStyle("muted"),
+  colors = pmColors(water = "#2a4a6c", park = "#c0d8c0"),
+  replace_labels = TRUE,
+  labelRules = list(
+    pmLabelRule("places", pmCenteredTextSymbolizer(
+      font = "bold 14px Arial",
+      fill = "#333"
+    ))
+  )
+)
+}
+
+}
+\seealso{
+\code{\link{pmStyle}}, \code{\link{pmMinimal}}
+}