Font Display on Extended Display Monitor with a Chromebook

Font Display on Extended Display Monitor with a Chromebook

I am using Nimbus Note on a Lenovo Chromebook. All is well with font display on the Chromebook screen. However, the screen is small so I have connected a larger display. Nimbus Note works fine on the extended display, but the all the text in notes appears as bolded even when it is not. If I view the same note on both the Chromebook screen and the extended monitor, it appears correct on the screen but not on the monitor. I don't see any way to change this. Not a showstopper but makes it difficult when a note contains text that is truly bolded and other text that is normal. Any ideas?