diff --git a/src/visualization.jl b/src/visualization.jl
index adeb0cd..0b4f169 100644
--- a/src/visualization.jl
+++ b/src/visualization.jl
@@ -164,7 +164,7 @@ function build_ui(U, V, param_obs_map::NamedTuple, params_obs, heat_obs)
 
     on(btn_reset.clicks) do _
         running[] = false
-        hm.colormap[] = :viridis
+        hm.colormap[] = :seismic
         reset!(U, V, heat_obs)
 
     end