Dropped dependency for Cairo

DESCRIPTION

@@ -10,7 +10,7 @@ Depends:
     R (>= 4.3.0), ggplot2, ggraph, XML, igraph, tidygraph
 Imports: BiocFileCache, GetoptLong, data.table, dplyr,
     magick, patchwork, shadowtext,  stringr, tibble,
-    org.Hs.eg.db, methods, utils, stats, AnnotationDbi, grDevices, Cairo,
+    org.Hs.eg.db, methods, utils, stats, AnnotationDbi, grDevices,
     gtable
 Suggests: 
     knitr,
@@ -19,7 +19,7 @@ Suggests:
     rmarkdown,
     BiocStyle,
     testthat (>= 3.0.0)
-RoxygenNote: 7.2.3
+RoxygenNote: 7.3.0
 biocViews: Pathways, DataImport, KEGG
 VignetteBuilder: knitr
 URL: https://github.com/noriakis/ggkegg

NAMESPACE

@@ -55,7 +55,6 @@ export(rawMap)
 export(rawValue)
 export(return_line_compounds)
 import(BiocFileCache)
-import(Cairo)
 import(ggplot2)
 import(ggraph)
 import(gtable)

R/ggkegg.R

@@ -40,7 +40,6 @@
 #' g + geom_node_rect()
 #' @import ggraph
 #' @import ggplot2
-#' @import Cairo
 #' @importFrom tidygraph as_tbl_graph
 #' @importFrom igraph induced.subgraph delete_vertex_attr
 #' @importFrom methods new

vignettes/usage_of_ggkegg.Rmd

@@ -136,7 +136,7 @@ We can use `overlay_raw_map` to overlay the raw KEGG images on the created `ggra
 The node and text can be directly customized by using various geoms, effects such as `ggfx`, and scaling functions.
 The code below creates nodes using default parsed background color and just overlay the image.
 
-```{r example_raw, message=FALSE, warning=FALSE, eval=TRUE, dev="CairoPNG"}
+```{r example_raw, message=FALSE, warning=FALSE, eval=TRUE}
 graph |>
     mutate(degree=centrality_degree(mode="all")) |>
     ggraph(graph, layout="manual", x=x, y=y)+