Hi there! :)
So, if you are creating the minimap using the tilemap, you need to have two things set properly:
1 - The <TileMinimap> note tag on the map's note. It is case-sensitive. Show me a screenshot so I know that you did it right.
2 - Setup the TileMinimap Colors. Go into the plugin parameters > Common Settings > Tileset Colors
Take a look at the help file to understand the priority of each section. Basically, the Minimap will always be painted with the color of the highest priority.
In the case above, if you are on a BUSH tile, the minimap will paint it green. But, if on that same Bush tile, you have a terrain Id as 0 or 1. it will paint the terrain tag colors(White or DarkRed).
If you do not want to use a color for something, just leave it empty.
But I also just find a bug while testing this, leaving the terrain tag colors empty, resulting in a crash. I will be fixing this issue tomorrow.
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Now, about the icons, you need to show me how you setup them up. By using the templates on the plugin parameters or by note tags/comments.
Let's find that problem :)