The color scheme currently available for Studio/MultiTerm 2019 (and 2017) is limited to White, Light Gray and Dark Gray.

These three colours are within the same range so it makes it difficult to differentiate interfaces at a glance, for instance if one has both Studio 2019 and Studio 2017 open at the same time (even with different colours for each interface).

Below is a screenshot showing Studio 2021 (Beta) in White, Studio 2019 in Light Gray and Studio 2017 in Dark Gray:

Would it be possible to add at least one more colour to the Studio "color scheme"?

For instance, a shade of Blue would be a nice addition, especially as I find this colour much more comfortable to work with (less eye strain). I remember when MS Office 2010 was available in 3 colours including this nice relaxing Blue:

What do you think?

[This idea follows from the following discussion in the Studio Beta Group forum on 29 May 2020: Studio 2021 colour scheme]