You can change the fonts to those that you like. To do this, download the font, paste it into the fonts folder, and connect them using the main.css (or fonts.scss) file. When you do this, change the variable –primary-font to the font you need. You can connect the font using this code:
@font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-ExtraLightItalic.ttf') format('truetype'); font-weight: 100; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-ExtraLight.ttf') format('truetype'); font-weight: 100; font-style: normal; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-LightItalic.ttf') format('truetype'); font-weight: 200; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-Light.ttf') format('truetype'); font-weight: 200; font-style: normal; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-ThinItalic.ttf') format('truetype'); font-weight: 300; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-Thin.ttf') format('truetype'); font-weight: 300; font-style: normal; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-Italic.ttf') format('truetype'); font-weight: 400; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-Regular.ttf') format('truetype'); font-weight: 400; font-style: normal; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-SemiBoldItalic.ttf') format('truetype'); font-weight: 500; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-SemiBold.ttf') format('truetype'); font-weight: 500; font-style: normal; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-BoldItalic.ttf') format('truetype'); font-weight: 600; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-Bold.ttf') format('truetype'); font-weight: 600; font-style: normal; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-ExtraBoldItalic.ttf') format('truetype'); font-weight: 700; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-ExtraBold.ttf') format('truetype'); font-weight: 700; font-style: normal; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-BlackItalic.ttf') format('truetype'); font-weight: 800; font-style: italic; font-stretch: normal; } @font-face { font-family: "Montserrat"; src: url('../fonts/Montserrat-Black.ttf') format('truetype'); font-weight: 800; font-style: normal; font-stretch: normal; }