feat: use owickstrom colours

lib/colours/owickstrom-light.nix

@@ -0,0 +1,37 @@
+rec {
+  black = {
+    bright = "#4b4b4b";
+    dark = "#242424";
+  };
+  red = {
+    bright = "#fc1c18";
+    dark = "#d71c15";
+  };
+  green = {
+    bright = "#6bc219";
+    dark = "#5aa513";
+  };
+  yellow = {
+    bright = "#fec80e";
+    dark = "#fdb40c";
+  };
+  blue = {
+    bright = "#0955ff";
+    dark = "#063b8c";
+  };
+  magenta = {
+    bright = "#fb0050";
+    dark = "#e40038";
+  };
+  cyan = {
+    bright = "#3ea8fc";
+    dark = "#2595e1";
+  };
+  white = {
+    bright = "#8c00ec";
+    dark = "#efefef";
+  };
+  background = white.dark;
+  foreground = "#181818";
+  cursor = "#bbbbbb";
+}