I have a vector layer of a map with a number of regions. I have coloured those regions using a gradient blue colour. I would like to create a colour scale bar for this map. I downloaded the Colour Scale Bar for One-Band Raster plugin from this website: http://www.bc-consult.com/free/bccscbar.html.
I created a .qml file by going into Styles and clicking on Save Styles - QGIS Layer Style File, but when I try to open this file in the plugin, it gives me an error saying "Error Wrong Input File (must be a colour table .txt or a custom QML file!).
Maybe the error is to do with the fact that I made the .qml file using a vector map and not a raster map. Could someone please help me in this. Is there a way to make the colour table in .txt from Styles (in a vector map) and then opening that file in this plugin to make a Colour Scale bar.