Helpful setting in-game

-resize icon hero in on minimap 

in game open console and type 

"dota_minimap_hero_size xxx"

xxx = replace with what you want

preview: 

"dota_minimap_hero_size 600"

"dota_minimap_hero_size 1200"

 

-Show Spell Range

Shows spells are within casting range of targeted area/target 

in game open console and type 

"dota_disable_range_finder 0"

preview:

That's some helpful tips that can improve your gameplay