You can change the size of icons on the Read&Write for Mac (6) toolbar as well as including text. To do this follow steps below:
Open Read&Write and click on the View option on the top toolbar.
Then select Customise Toolbar (see below)
The customise window will then open. From here you can set how you would like the icons to appear on the toolbar. At the bottom of the window you can change the icons using the following two options (see image below)
Under the Show dropdown there are three options to choose from:
Select the option you would like to use.
You can then set the icons to appear small or normal size. If you want the icons to appear smaller select the Use small size box. If you want larger icons ensure the box is unselected (see images below)
Icons will appear smaller
Icons will appear larger