Move the slider this much per click.
This attribute specifies how much a slider increments when the user clicks the end arrows of the slider.
int: an integer in the range of min_value and max_value. The default value is 1/100 of the total range.
Example
min_value = -16;
max_value = 16;
small_increment = 1;
big_increment = 10;
NOTE
Valid Tile
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