Support and resistance levels indicator.

The levels are calculated according to the diagonal and cardinal cross of the Gann square.
The calculation is performed relative to the current price or relative to the price specified by the user in the Price setting.
Also, in the calculation, you can use a part of the pricing using the Digit and minus_znak settings.

For example: the current price looks like - 1.23456, and the Digit setting is set to _5____, so the calculation will include
participate number 23456,
for _6____ will be the number 123456
for __4____ the number will be 3456
for ___3___ there will be number 456
for ____2__ the number will be 56

The minus_znak setting removes the numbers to the right of the pricing
For example: Digit is set to _5____ and minus_znak is set to _0
pricing will have the form 23456
at _1 it will be 2345
at _2 it will be 234

The display of the cardinal or diagonal cross can be turned on or off with the appropriate settings.
Also customize the display color of lines and labels to your liking.