Support for selecting line via two filters - One for background color and one for forground color

[ghost]

Feature request: Currently if a line is selected via multiple filters, then only first filter takes effect. Since now we have support for using background and foreground colors, it is possible to have up to two filters select any given line and color it accordingly. For example, when we select one of the colors as [default] tool can use color from the other filter, if applicable. This is useful when log lines can appear in two partially overlapping contexts.