Add One Monokai Theme (#8)

A mix between One Dark and Monokai; colors taken from https://github.com/azemoh/vscode-one-monokai.

One-Monokai.tet

@@ -0,0 +1,36 @@
+[color_theme]
+
+background_color="ff282c34"
+completion_background_color="ff21252b"
+completion_selected_color="ff2c313a"
+completion_existing_color="ff314365"
+completion_scroll_color="ff2c313a"
+completion_font_color="ffabb2bf"
+caret_color="fff8f8f0"
+caret_background_color="ff000000"
+line_number_color="ff495162"
+safe_line_number_color="ff808080"
+text_color="ffabb2bf"
+text_selected_color="ffabb2bf"
+keyword_color="ffe06c75"
+base_type_color="ffd19a66"
+engine_type_color="ff61afef"
+user_type_color="ff56b6c2"
+function_color="ff98c379"
+member_variable_color="ff61afef"
+comment_color="ff5c6370"
+string_color="ffe5c07b"
+number_color="ffc678dd"
+symbol_color="ff808080"
+selection_color="ff3e4451"
+brace_mismatch_color="ffc24038"
+current_line_color="ff383e4a"
+line_length_guideline_color="ff3b4048"
+mark_color="38ff3232"
+breakpoint_color="ffc24038"
+code_folding_color="ff808080"
+word_highlighted_color="ff3e4141"
+search_result_color="ff314365"
+search_result_border_color="00000000"
+gdscript/function_definition_color="ff98c379"
+gdscript/node_path_color="ffd19a66"

README.md

@@ -29,6 +29,7 @@ generated themes.*
 - Monokai
 - Nord
 - One Dark
+- One Monokai
 - Solarized Dark
 - Visual Studio Code Dark