That’s a theme issue. My plugin does NOT specify the size of the text it outputs. That’s all up to how your theme is set to display text. Most of the text my plugin outputs is in tables, so you should look through your theme’s style sheet for how it is formatting tables, and change the font size it uses with CSS.
If your theme has an area where you can enter custom CSS, then that’s the best place to put your CSS. You can use the “inspect element” feature of your browser, or other developer tools, to find the target classes for what you want to change.
I try to abide by the principal that plugins only add functionality and do NOT alter the appearance of your theme. Theme’s are supposed to be what determine the appearance of elements on the page (even though many of them try to add lots of functionality, which really should be done with plugins).
The tables I use each have their own class, so you can target specific elements withing each class to customize the appearance just for my plugin tables without affecting the tables used anywhere else on your site.
For example, the table that displays the list of sheets has class:
pta-sus-sheets
and the table that shows all the tasks for a specific sheet has the class:
pta-sus-tasks
Use the inspect element feature to find classes for other elements you want to change.
Also, I imagine that any older users with reading issues have already figure out how to increase the font size on web pages. All major browsers allow you to adjust the size of text on the screen, usually just by hitting CTRL +
