Testing version: Bear 2.0 (9652)
What were you doing: Changing text size (using zoom in/zoom out) after having changed theme to other then default themes (default = I believe is Red and Dark Graphite).
What feature did you use: Changing theme + changing text size + changing text size back to actual size.
What happened: After initial change (of zoom and theme), I changed size back to View > Actual Size (via menu or via keyboard shortcut), at that moment any chosen theme changed back to default theme (Red if in light, Dark if in dark setting)
What did you expect to happen: Theme would stay the same.