Button Color - wrong and not adjusting

TRIED TO SUBMIT ON FEEDBACK WEBSITE, BUT IT WONT UPLOAD - keeps saying failure to submit post!!! (therefore i cannot share the screenshot here. this is extremely frustrating). I have already adjusted the color via the theme button, and as is evident on the left-hand side of my screenshot, it works for some buttons. However, ever since converting to ‘bettercampus’ instead of ‘bettercanvas’ the dark grey default color is used for other buttons within pages. It is quite annoying because it does not contrast well with the text, and I have triple-checked, and there is no other theme-editing color option that seems to relate to this—other than the button colors, which I have already adjusted. Please fix this!