The default theme on my installation is something which maps the values to pink and cyan. How to change it for example to a gray scale theme?
You may also want to consider using panel.levelplot.raster
, as it reduces the figure size sizably, as I recently found out. Combining this tip with changing trellis settings in general, here are a following examples:
trellis.par.set(regions=list(col=topo.colors(100)))
levelplot(volcano, panel = panel.levelplot.raster)
levelplot(volcano, panel = panel.levelplot.raster,
par.settings=list(regions=list(col=topo.colors(100))))
The second method is deceptive because the trellis settings are in fact being changed globally. I didn't know about the col.regions argument though - that's pretty nice as it seems to change the color theme locally.