Alpha values less than 1 do not display properly

• [x ] I am on the latest Hyper.app version
• [ x] I have searched the issues of this repo and believe that this is not a duplicate

• OS version and name: Mac OS 10.12.6
• Hyper.app version: 2.0.0
• Link of a Gist with the contents of your .hyper.js: https://gist.github.com/nikhildhawan117/2aa305f609b406c66aa4f58b47cdbe54
• Relevant information from devtools (CMD+ALT+I on macOS, CTRL+SHIFT+I elsewhere): N/A
• The issue is reproducible in vanilla Hyper.app: Is Vanilla

Issue

After the new update, overtime the alpha value is changed to be less than 1, the hyper terminal displays the new color value correctly once the .hyper.js is saved, but once hyper is quit and reopened, the terminal displays a much more transparent alpha. This was never an issue in the previous version.