Array
I have generated the above graph using the following code :
Code:
graph bar, over(region) blabel(bar) ytitle(Percent) by(, title("Market Share by Region") subtitle("Top 100")) by(year)
How can I highlight EU-27 using different color, say, green?

Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input double year str5 region
2010 "US"   
2010 "US"   
2010 "US"   
2010 "EU-27"
2010 "Other"
2010 "US"   
2010 "Other"
2010 "US"   
2010 "US"   
2010 "US"   
2010 "US"   
2010 "US"   
2010 "Other"
2010 "US"   
2010 "US"   
2010 "Other"
2010 "US"   
2010 "US"   
2010 "US"   
2010 "US"   
2010 "UK"   
2010 "Other"
2010 "US"   
2010 "UK"   
2010 "UK"   
2010 "US"   
2010 "Other"
2010 "US"   
2010 "Other"
2010 "Other"
2010 "Other"
2010 "EU-27"
2010 "US"   
2010 "Other"
2010 "US"   
2010 "US"   
2010 "EU-27"
2010 "US"   
2010 "US"   
2010 "Other"
2010 "EU-27"
2010 "UK"   
2010 "Other"
2010 "Other"
2010 "US"   
2010 "US"   
2010 "US"   
2010 "Other"
2010 "US"   
2010 "UK"   
2010 "Other"
2010 "Other"
2010 "US"   
2010 "EU-27"
2010 "EU-27"
2010 "Other"
2010 "EU-27"
2010 "EU-27"
2010 "Other"
2010 "UK"   
2010 "Other"
2010 "US"   
2010 "EU-27"
2010 "Other"
2010 "Other"
2010 "US"   
2010 "Other"
2010 "US"   
2010 "EU-27"
2010 "US"   
2010 "US"   
2010 "EU-27"
2010 "EU-27"
2010 "UK"   
2010 "Other"
2010 "EU-27"
2010 "Other"
2010 "EU-27"
2010 "Other"
2010 "EU-27"
2010 "Other"
2010 "EU-27"
2010 "EU-27"
2010 "US"   
2010 "Other"
2010 "EU-27"
2010 "EU-27"
2010 "Other"
2010 "Other"
2010 "US"   
2010 "UK"   
2010 "UK"   
2010 "UK"   
2010 "UK"   
2010 "Other"
2010 "Other"
2010 "UK"   
2010 "UK"   
2010 "EU-27"
2010 "Other"
end
format %ty year