Biome Profiles
You can customize which color is used by Amidst to render a biome. You can do this by using biome profiles. A biome profile is a file that specifies a color for each biome that is known to Amidst.
These are the default biome colors used by Amidst.
This is the default biome profile and this is a second example. As you can see, a biome profile has a name and a color map. The name is used to refer to the biome profile in the GUI while the color map contains the actual colors that are used to render the map. Each biome is mapped to an RGB color.
By default, this feature is disabled. To activate it, create a subdirectory named biome in the directory that contains the Amidst jar or exe file. You can customize the location of this directory via the Command Line Interface. The next time Amidst is started, it will create a file called default.json in this folder. It contains the default biome color profile. You can copy and modify this file as often as you like. Amidst will use all biome profile files that are placed in the biome directory. If you want to go crazy, you can also use subdirectories. You can activate a biome profile from the menu Settings > Biome profile. Subdirectories will be represented as sub menus. In this menu, you can also reload the biome profile menu to represent the currently available biome profiles in the biome directory.
If you do create a new profile by editing the default.json make very sure that you change the "name":"default" to the desired name of the new profile in the first line of the file. Otherwise you will find that you have two profiles listed as "default".
This feature is quite unstable. This means the syntax might change and it might even be removed in the future if it gets in the way of other features. You might want to use the Biome Highlighter instead.