my suggestions and views
* add grid/snap
* filled box/oval/circle really isn't filled on the inside?
* why limit resolution
* hard to differentiate between grid lines and drawn lines
* add iso/hex grid besides default square grid
Filled polygons: You have to go into the style menu and select fill style, by default all filled shapes are filled by white, guess it is confusing as white is bg default colour too, but yeah, filled does work, select your shape in Tool>Go to new tab named Style>Fill>Select your style and apply
Resolution limit: because vibes? I think Decker being low res is one of its very cool selling points, maybe a technical limitation, but I love decker’s fixed resolution!