I'm assuming the number field might be Blue/Green/Red (in hex, one byte per color), but didn't check that either. I put a few colors you can test-you can define your own colors in the code, or read them back from the registry key if you want to use the color chooser in the GUI where you would normally change the color (Easy Access settings). Assuming the other code from user3419297 is correct for detecting the language (I didn't test it), the additional function below will change the cursor indicator color.
