/Users/[UserName]/Library/Application Support/Sublime Text 2/Packages/Theme - Cobalt2/cobalt2.tmTheme
<dict>
<key>name</key>
<string>Comment</string>
<key>scope</key>
<string>comment</string>
<key>settings</key>
<dict>
<key>fontStyle</key>
<string>italic</string>
<key>foreground</key>
<string>#7495ff</string> ← ココ
</dict>
</dict>