Blackboard is a popular theme many other platforms.
This is fork for xcode with some changes for contrast.
Include colors for editor and console.
Xcode color schemes are stored in ~/Library/Developer/Xcode/UserData/FontAndColorThemes/ folder.
git clone https://github.com/reejosamuel/xcode-blackboard-theme.git
cd xcode-blackboard-theme
mkdir -p ~/Library/Developer/Xcode/UserData/FontAndColorThemes/
cp *.dvtcolortheme ~/Library/Developer/Xcode/UserData/FontAndColorThemes/
# restart Xcode, Goto preference and change to RSBlackboard
