start:  \e[  sep:  ;  end:  m

    0     1     2     3     4     5     6     7     8     9 

   10    11    12    13    14    15    16    17    18    19 

   20    21    22    23    24    25    26    27    28    29 

   30    31    32    33    34    35    36    37    38    39 

   40    41    42    43    44    45    46    47    48    49 

   50    51    52    53    54    55    56    57    58    59 

   60    61    62    63    64    65    66    67    68    69 

   70    71    72    73    74    75    76    77    78    79 

   80    81    82    83    84    85    86    87    88    89 

   90    91    92    93    94    95    96    97    98    99 

  100   101   102   103   104   105   106   107   108 

foreground: \e[38;2;r;g;bm   background: \e[48;2;r;g;bm

clear to the end line    \e[K
clear to the start line  \e[1K

cursor previus n lines and clear     \e[nF\e[J
clear screen and move to top corner  \e[1;1H\e[J

more at https://en.wikipedia.org/wiki/ANSI_escape_code