# lavat > Display an animated lava lamp effect in the terminal. > Customize colors, speed, size, movement, and display style. > More information: . - Start the default lava animation: `lavat` - Start with named lava and rim colors: `lavat -c {{green}} -k {{red}}` - Start in gradient mode with two hex colors: `lavat -g -c {{00FF00}} -k {{FF0000}}` - Start with gravity and buoyancy movement enabled: `lavat -G` - Start with a custom speed, radius, rim size, and number of metaballs: `lavat -s {{1..10}} -r {{1..10}} -R {{1..5}} -b {{5..20}}` - Start with a custom ASCII character set: `lavat -F "{{.oO@}}"` - Display help: `lavat -h`