I performed a fresh reinstallation and captured 5 minutes of video. (It's a VMware virtual machine, so that's easy to do.) "Installing the base system" starts at 2:28, and for most of the progress of that step, the border looks pretty. It becomes ugly during the installation of console-setup (3:44), and stays ugly for the rest of the "Installing the base system" step.
Perhaps the package for this bug report should be changed from debian-installer to console-setup, but I'm not sure of that.
I performed a fresh reinstallation and captured 5 minutes of video. (It's a VMware virtual machine, so that's easy to do.) "Installing the base system" starts at 2:28, and for most of the progress of that step, the border looks pretty. It becomes ugly during the installation of console-setup (3:44), and stays ugly for the rest of the "Installing the base system" step.
Perhaps the package for this bug report should be changed from debian-installer to console-setup, but I'm not sure of that.