gfx_screen_width 800;gfx_screen_height 600;exit
bind mouse1 +fire
gfx_screen_width 800;gfx_screen_height 600;exit
PowerShell -Command "(gc %AppData%\Teeworlds\settings_ddnet.cfg) | Where-Object { $_ -notmatch 'gfx_screen_height|gfx_screen_width' } | Set-Content -Path %AppData%\Teeworlds\settings_ddnet.cfg"
from command line or run dialog box