accessibility

Is there a way to test if a GUI is usable for color blind person?

My eight-year-old son is left-handed and I am right-handed. I wish to be able to quickly and easily switch primary and secondary mouse buttons from the command line. We use Windows 10.

When using the ChromeVox screen reader I find that it's possible to navigate to a select box and to select options, but I can't work out how to have the screen reader read out the options, which is

Please correct me if I am wrong, but usually screen reader navigation works by pressing the tab key, and usually you do not have (or need) tab-able images.

I am working on a website using frames. The top frame holds the menu items and the bottom frame holds the main content.

How can I href to main frame content section?

Is there any way in which I can make my Vaadin-Grid accessible for screen reader users or even simply by tabbing?

I have a button with accessibility label @"a". When the button is pressed, I have a callback that sets the accessibility label button.accessibilityLabel = @"b".

I am working on an ERP Web App which doesn't need SEO.
In few instances, I may have to use Learn More / Click Here.

A more complex version of: Word-wrap in an HTML table.

I've sifted through the available UIAccessibility capabilities here but haven't fo