I found a way to do that by clicking on View > Font Size > then clicking multiple times on "bigger" to increase the size. The problem is it enlarges all the panels items fonts as well which creates another problem. Another issue I have come across with is that the text and background color in the annotation box on the sidebar can't be change! If there is anything I can do to convey this issue to those in charge of this kind of request, please guys let me know.