* transparent + reactive background colors
* refactor header to not set its own background color
* make terms not set background color
* dramatically improve tab borders
* remove background color from electron windows
* Revert "remove background color from electron windows"
This reverts commit ca4de3c5dc28095f1a598f7ac79d4dff4b66ccd5.
* put alpha first for electron
* remove initial bg color setting, but maintain reactive one
* fix