diff --git a/R/drawTreemap.R b/R/drawTreemap.R
index 02a4d8f..78e2d35 100644
--- a/R/drawTreemap.R
+++ b/R/drawTreemap.R
@@ -75,41 +75,44 @@
 #'   the input for the drawing function
 #'
 #' @examples
-#' # load example data
-#' data(mtcars)
-#' mtcars$car_name = gsub(" ", "\n", row.names(mtcars))
+#' # load package
+#' library(WeightedTreemaps)
 #'
-#' # generate treemap; set seed to obtain same pattern every time
+#' # generate dummy data
+#' df <- data.frame(
+#'   A = rep(c("abcd", "efgh"), each = 4),
+#'   B = letters[1:8],
+#'   size = c(37, 52, 58, 27, 49, 44, 34, 45)
+#' )
+#'
+#' # compute treemap
 #' tm <- voronoiTreemap(
-#'   data = mtcars,
-#'   levels = c("gear", "car_name"),
-#'   cell_size = "wt",
-#'   shape = "rounded_rect",
+#'   data = df,
+#'   levels = c("B"),
+#'   cell_size = "size",
+#'   shape = "circle",
+#'   positioning = "regular",
 #'   seed = 123
 #' )
 #'
-#' # draw treemap
-#' drawTreemap(tm, label_size = 2)
+#' # plot treemap with each cell colored by name (default)
+#' drawTreemap(tm, label_size = 1, color_type = "categorical")
 #'
-#' # draw different variants of the same treemap on one page using
-#' # the 'layout' and 'position' arguments (indicating rows and columns)
-#' drawTreemap(tm, title = "treemap 1", label_size = 2,
-#'   color_type = "categorical", color_level = 1,
-#'   layout = c(1,3), position = c(1, 1))
+#' # plot treemap with each cell colored by name, but larger cells
+#' # lighter and smaller cells darker
+#' drawTreemap(tm, label_size = 1, color_type = "both")
 #'
-#' drawTreemap(tm, title = "treemap 2", label_size = 2,
-#'   color_type = "categorical", color_level = 2, border_size = 3,
-#'   add = TRUE, layout = c(1,3), position = c(1, 2))
-#'
-#' drawTreemap(tm, title = "treemap 3", label_size = 2,
-#'   color_type = "cell_size", color_level = 2,
-#'   color_palette = heat.colors(10),
-#'   border_color = grey(0.4), label_color = grey(0.4),
-#'   add = TRUE, layout = c(1,3), position = c(1, 3),
-#'   title_color = "black")
+#' # plot treemap with different color palette and style
+#' drawTreemap(tm, label_size = 1, label_color = grey(0.3),
+#'             border_color = grey(0.3), color_palette = heat.colors(6)
+#' )
 #'
 #' # ---------------------------------------------
 #'
+#' # load example data
+#' data(mtcars)
+#' mtcars$car_name = gsub(" ", "\n", row.names(mtcars))
+#'
 #' # generate sunburst treemap
 #' tm <- sunburstTreemap(
 #'   data = mtcars,
diff --git a/R/voronoiTreemap.R b/R/voronoiTreemap.R
index 6bb06a6..17507ca 100644
--- a/R/voronoiTreemap.R
+++ b/R/voronoiTreemap.R
@@ -81,38 +81,37 @@
 #' @seealso \code{\link{drawTreemap}} for drawing the treemap.
 #'
 #' @examples
-#' # load example data
-#' data(mtcars)
-#' mtcars$car_name = gsub(" ", "\n", row.names(mtcars))
+#' # load package
+#' library(WeightedTreemaps)
 #'
-#' # generate treemap; set seed to obtain same pattern every time
+#' # generate dummy data
+#' df <- data.frame(
+#'   A = rep(c("abcd", "efgh"), each = 4),
+#'   B = letters[1:8],
+#'   size = c(37, 52, 58, 27, 49, 44, 34, 45)
+#' )
+#'
+#' # compute treemap
 #' tm <- voronoiTreemap(
-#'   data = mtcars,
-#'   levels = c("gear", "car_name"),
-#'   cell_size = "wt",
-#'   shape = "rounded_rect",
+#'   data = df,
+#'   levels = c("B"),
+#'   cell_size = "size",
+#'   shape = "circle",
+#'   positioning = "regular",
 #'   seed = 123
 #' )
 #'
-#' # draw treemap
-#' drawTreemap(tm, label_size = 2)
+#' # plot treemap with each cell colored by name (default)
+#' drawTreemap(tm, label_size = 1, color_type = "categorical")
 #'
-#' # draw different variants of the same treemap on one page using
-#' # the 'layout' and 'position' arguments (indicating rows and columns)
-#' drawTreemap(tm, title = "treemap 1", label_size = 2,
-#'   color_type = "categorical", color_level = 1,
-#'   layout = c(1,3), position = c(1, 1))
+#' # plot treemap with each cell colored by name, but larger cells
+#' # lighter and smaller cells darker
+#' drawTreemap(tm, label_size = 1, color_type = "both")
 #'
-#' drawTreemap(tm, title = "treemap 2", label_size = 2,
-#'   color_type = "categorical", color_level = 2, border_size = 3,
-#'   add = TRUE, layout = c(1,3), position = c(1, 2))
-#'
-#' drawTreemap(tm, title = "treemap 3", label_size = 2,
-#'   color_type = "cell_size", color_level = 2,
-#'   color_palette = heat.colors(10),
-#'   border_color = grey(0.4), label_color = grey(0.4),
-#'   add = TRUE, layout = c(1,3), position = c(1, 3),
-#'   title_color = "black")
+#' # plot treemap with different color palette and style
+#' drawTreemap(tm, label_size = 1, label_color = grey(0.3),
+#'             border_color = grey(0.3), color_palette = heat.colors(6)
+#' )
 #'
 #' @importFrom Rcpp evalCpp
 #' @importFrom grid grid.newpage
diff --git a/README.Rmd b/README.Rmd
index d7cd7c3..d1b3dfa 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -1,7 +1,7 @@
 ---
 output:  github_document
 title: "WeightedTreemaps"
-author: "Michael Jahn, David Leslie, Ahmadou Dicko"
+author: "Michael Jahn, David Leslie, Ahmadou Dicko, Paul Murrell"
 date: "`r Sys.Date()`"
 vignette: >
   %\VignetteIndexEntry{WeightedTreemaps}
diff --git a/README.md b/README.md
index 892f6c2..61e8ec7 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 WeightedTreemaps
 ================
-Michael Jahn, David Leslie, Ahmadou Dicko
-2023-12-15
+Michael Jahn, David Leslie, Ahmadou Dicko, Paul Murrell
+2024-01-07
 
 <!-- include logo-->
 
diff --git a/cran-comments.md b/cran-comments.md
index a115d8f..e2f10e7 100644
--- a/cran-comments.md
+++ b/cran-comments.md
@@ -1,4 +1,4 @@
-## Release
+## Update
 
 ## Test environments
 
@@ -10,13 +10,13 @@
 - ubuntu-latest (release)
 - ubuntu-latest (oldrel-1)
 
-
 ### with `rhub::check_for_cran()`
 
 - Fedora Linux, R-devel, clang, gfortran
 - Debian Linux, R-release, GCC
 - Windows Server 2022, R-devel, 64 bit
 - Ubuntu Linux 20.04.1 LTS, R-release, GCC
+- Debian Linux, R-devel, GCC ASAN/UBSAN
 
 ## R CMD check results
 
@@ -34,6 +34,9 @@ checking installed package size ... NOTE
 
 Installed package size exceeding 5 MB is caused by the compiled function `voronoiDiagram.o`. The size of this file can not be reduced.
 
+There were "additional issues" brought up with from ASAN/UBSAN sanitizer checks.
+These were fixed in the current version.
+
 ## Downstream dependencies
 
 - There are currently no downstream dependencies for this package
diff --git a/man/drawTreemap.Rd b/man/drawTreemap.Rd
index 9f43f87..ea7ad9a 100644
--- a/man/drawTreemap.Rd
+++ b/man/drawTreemap.Rd
@@ -127,41 +127,44 @@ during treemap generation. Such parameters are primarily cell size and
 initial shape of the treemap.
 }
 \examples{
-# load example data
-data(mtcars)
-mtcars$car_name = gsub(" ", "\n", row.names(mtcars))
+# load package
+library(WeightedTreemaps)
+
+# generate dummy data
+df <- data.frame(
+  A = rep(c("abcd", "efgh"), each = 4),
+  B = letters[1:8],
+  size = c(37, 52, 58, 27, 49, 44, 34, 45)
+)
 
-# generate treemap; set seed to obtain same pattern every time
+# compute treemap
 tm <- voronoiTreemap(
-  data = mtcars,
-  levels = c("gear", "car_name"),
-  cell_size = "wt",
-  shape = "rounded_rect",
+  data = df,
+  levels = c("B"),
+  cell_size = "size",
+  shape = "circle",
+  positioning = "regular",
   seed = 123
 )
 
-# draw treemap
-drawTreemap(tm, label_size = 2)
-
-# draw different variants of the same treemap on one page using
-# the 'layout' and 'position' arguments (indicating rows and columns)
-drawTreemap(tm, title = "treemap 1", label_size = 2,
-  color_type = "categorical", color_level = 1,
-  layout = c(1,3), position = c(1, 1))
+# plot treemap with each cell colored by name (default)
+drawTreemap(tm, label_size = 1, color_type = "categorical")
 
-drawTreemap(tm, title = "treemap 2", label_size = 2,
-  color_type = "categorical", color_level = 2, border_size = 3,
-  add = TRUE, layout = c(1,3), position = c(1, 2))
+# plot treemap with each cell colored by name, but larger cells
+# lighter and smaller cells darker
+drawTreemap(tm, label_size = 1, color_type = "both")
 
-drawTreemap(tm, title = "treemap 3", label_size = 2,
-  color_type = "cell_size", color_level = 2,
-  color_palette = heat.colors(10),
-  border_color = grey(0.4), label_color = grey(0.4),
-  add = TRUE, layout = c(1,3), position = c(1, 3),
-  title_color = "black")
+# plot treemap with different color palette and style
+drawTreemap(tm, label_size = 1, label_color = grey(0.3),
+            border_color = grey(0.3), color_palette = heat.colors(6)
+)
 
 # ---------------------------------------------
 
+# load example data
+data(mtcars)
+mtcars$car_name = gsub(" ", "\n", row.names(mtcars))
+
 # generate sunburst treemap
 tm <- sunburstTreemap(
   data = mtcars,
diff --git a/man/voronoiTreemap.Rd b/man/voronoiTreemap.Rd
index 9aa79b6..c7e5a10 100644
--- a/man/voronoiTreemap.Rd
+++ b/man/voronoiTreemap.Rd
@@ -116,38 +116,37 @@ This function returns a treemap object instead of a plot. In order
 to actually draw the treemap, use \code{\link{drawTreemap}}.
 }
 \examples{
-# load example data
-data(mtcars)
-mtcars$car_name = gsub(" ", "\n", row.names(mtcars))
+# load package
+library(WeightedTreemaps)
+
+# generate dummy data
+df <- data.frame(
+  A = rep(c("abcd", "efgh"), each = 4),
+  B = letters[1:8],
+  size = c(37, 52, 58, 27, 49, 44, 34, 45)
+)
 
-# generate treemap; set seed to obtain same pattern every time
+# compute treemap
 tm <- voronoiTreemap(
-  data = mtcars,
-  levels = c("gear", "car_name"),
-  cell_size = "wt",
-  shape = "rounded_rect",
+  data = df,
+  levels = c("B"),
+  cell_size = "size",
+  shape = "circle",
+  positioning = "regular",
   seed = 123
 )
 
-# draw treemap
-drawTreemap(tm, label_size = 2)
-
-# draw different variants of the same treemap on one page using
-# the 'layout' and 'position' arguments (indicating rows and columns)
-drawTreemap(tm, title = "treemap 1", label_size = 2,
-  color_type = "categorical", color_level = 1,
-  layout = c(1,3), position = c(1, 1))
-
-drawTreemap(tm, title = "treemap 2", label_size = 2,
-  color_type = "categorical", color_level = 2, border_size = 3,
-  add = TRUE, layout = c(1,3), position = c(1, 2))
-
-drawTreemap(tm, title = "treemap 3", label_size = 2,
-  color_type = "cell_size", color_level = 2,
-  color_palette = heat.colors(10),
-  border_color = grey(0.4), label_color = grey(0.4),
-  add = TRUE, layout = c(1,3), position = c(1, 3),
-  title_color = "black")
+# plot treemap with each cell colored by name (default)
+drawTreemap(tm, label_size = 1, color_type = "categorical")
+
+# plot treemap with each cell colored by name, but larger cells
+# lighter and smaller cells darker
+drawTreemap(tm, label_size = 1, color_type = "both")
+
+# plot treemap with different color palette and style
+drawTreemap(tm, label_size = 1, label_color = grey(0.3),
+            border_color = grey(0.3), color_palette = heat.colors(6)
+)
 
 }
 \seealso{