This visualization plugin is like the default Metric plugin, improved to be colorful !
You can install this plugin in Kibana 5.4 by doing the following in your home directory ($KIBANA_HOME is generally /usr/share/kibana) :
git clone https://github.com/r32rtb/kibana_metric_vis_colors.git ./metric_vis_colors/kibana/kibana_metric_vis_colors
cd metric_vis_colors
zip -r kibana_metric_vis_colors-5.4.0.zip kibana
$KIBANA_HOME/bin/kibana-plugin install file:///$HOME_DIRECTORY/metric_vis_colors/kibana_metric_vis_colors-5.4.0.zip
Go to "Visualize" in Kibana and create a new visualization
Then you can choose the colors you want in the options. You can use any color listed here, or any hexadecimal color code like #000000.