The MT4 build 971 released today is just a hotfix for one bug only: Indicator lines with clrNone were changed to clrBlack after the platform's restart. Now the color should remain clrNone where needed. Download MT4 Build 971 by starting your terminal. The official post about this build is available on the MetaQuotes forum. If you find some bug or want to share your impression about the latest MT4 build, please post below.