Add tokyo night theme

.gitignore

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+st
+*.o

tokyo_night.h

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+/* Terminal colors (16 first used in escape sequence) */
+static const char *colorname[] = {
+    /* 8 normal colors */
+    [0] = "#1a1b26", /* black   */
+    [1] = "#f7768e", /* red     */
+    [2] = "#9ece6a", /* green   */
+    [3] = "#e0af68", /* yellow  */
+    [4] = "#2ac3de", /* blue    */
+    [5] = "#bb9af7", /* magenta */
+    [6] = "#7dcfff", /* cyan    */
+    [7] = "#d5d6db", /* white   */
+                                  
+    /* 8 bright colors */
+    [8]  = "#1a1b26", /* black   */
+    [9]  = "#f7768e", /* red     */
+    [10] = "#9ece6a", /* green   */
+    [11] = "#e0af68", /* yellow  */
+    [12] = "#2ac3de", /* blue    */
+    [13] = "#bb9af7", /* magenta */
+    [14] = "#7dcfff", /* cyan    */
+    [15] = "#cfc9c2", /* white   */
+                                   
+    /* special colors */
+    [256] = "#1a1b26", /* background */
+    [257] = "#cfc9c2", /* foreground */
+
+};
+
+unsigned int defaultfg = 257;
+unsigned int defaultbg = 256;
+unsigned int defaultcs = 257;
+static unsigned int defaultrcs = 257;