[messaging app] selected SIM hard for some people to see

[Selene ToyKeeper]

To indicate which SIM slot is active, the messaging-app changes the SIM label from black-on-white to dark-red-on-white. For red-colorblind people, this highlight makes no significant difference. Studies estimate that this affects about 8% of the male population and about 0.5% of the female population.

Could the visual change be made slightly more noticeable? Perhaps only underline the active slot, or render the active slot in a bold font, or maybe change the color to something with higher contrast compared to the inactive slot?

A screenshot is attached. The top row shows no SIM selected, while the second row shows SIM 2 selected. To red-colorblind people, they look nearly identical.

[Selene ToyKeeper (toykeeper)]

Olga isn't with Canonical any more, and the theme has changed since I filed this bug. Needs re-testing and possibly re-assignment.

[Selene ToyKeeper (toykeeper)]

The new theme uses light blue versus grey instead of the older dark red vs black. This is easier for red-colorblind people to distinguish, but it might still be nice to have a change beyond just the color, like a thicker underline or something. Some are more colorblind than others.