This is version 1.1.1 of "CRT" (Cool Retro Terminal) for linux.
Runs on my 64bit Centos 7.x machine. Very cool vintage terminal emulator,
assuming your graphics hardware supports it.

I was able to get a really nice VT100 looking screen with these settings;
(see attached crt-settings-screenshot.jpg)

    General
        Brightness: 50%
        Contrast: 80%
        Margin: 50%
        Opacity: 100%

    Terminal
        Rasterization: Scanlines
        Name: Commodore PET (1977)
        Scaling: 140%
        Font Width: 90%
        Chroma Color: 25%
        Saturation Color: 25%
        Font: #b3feff           <-- cool blue
        Background: #000000

    Effects
        Bloom: 45%
        Burnin: 13%
        Static Noise: 7%
        Jitter: 6%
        Glow Line: 2%
        Screen Curvature: 6%
        (All other options "off")

    Advanced (I think these are all defaults?)
        Effects FPS: 20
        Texture Quality: 100%
        Bloom Quality: 50%
        Burnin Quality: 50%
        Burnin Optimization: enabled