[LAU] Ardour 5¹ font size - ¹from Arch User Repository

Hi, I try to use https://aur.archlinux.org/packages/ardour5/. Ardour 5 copied the Ardour 4 settings, but I get nearly unreadable small fonts and no bright theme is available. The short cut for zoom in "=" doesn't work. The theme "Blueberry Milk" is missing. I'm not against dark themes, but all provided dark themes at least in combination with the much too small fonts, provide much too less contrast. Im using a CTR 1152x864, no unusual DPI settings, with relatively dark brightness settings. The only question for the moment is: How can I enlarge the font size? By default the Ardour 4 fonts were to small, too, but I at least could read enough, to find where to enlarge the fonts. $ pacman -Q ardour5 ardour5 5.5-1 Regards, Ralf