Line color appears with opacity on OpenGl view (on render view is ok).

Hello there,
I am a bit confused why this happens. At OpenGl view when I draw something with the pencil tool it appears as it has opacity, the brush looks ok. At render view both are fine.
Any ideas how to fix this?

Thank you very much!!

p.s. Provided screenshot.

Check the colour window after selecting the pencil tool to
see the properties of the colour pot you are drawing with.

Hello, I don’t know what I am looking for in the color tab, Showing the values of the color the opacity seems to be full!
Should I look somewhere specific??

Thank you rkriz!!!

p.s. I added another screenshot (colors) with the values.