Lightness-contrast filter does not appear to work

[Rena Kunisaki]

When using some items in the Filters menu, there is little visual confirmation that anything has happened; for others, it appears as though an effect has been applied, but with no way to control it.

Example:
1) Open Inkscape and draw a rectangle.
2) Select the rectangle.
3) Go to Filters, Color, Lightness-Contrast.
4) A filter is successfully applied, but visually, nothing appears to have happened.
One expects a dialog to appear, where the effect can be adjusted. Probably the appropriate action would be to open the filter editor so that the newly-applied filter can be configured.

[jazzynico (jazzynico)]

Lightness-contrast is a very subtle filter, and you'll see no difference if you use it on a flat colored rectangle. It works nicely with an image or a gradient.

Filters can be edited with Filters>Filter Editor. This is the only dialog available for editing SVG filters, and it is quite complex to use. Thus, opening it after applying an effect is probably not a good idea. But I agree that a smaller dialog, containing the filter's parameters only, would be very useful.

When a filter is applied on a selected object, the status bar displays: Object; filtered (filtername) in layername, etc.

[jazzynico (jazzynico)]

Lightness-Contrast could be more effective with a dialog and some well-chosen parameters.
Report linked to the custom predefined filters blueprint I'm currently working on. Adding color parameters to color related filters would probably make them more useful.

As for the status bar message, I'm afraid that doing more would be overkill.

[jazzynico (jazzynico)]

Lightness-contrast replaced with the Lightness custom predefined filter in the trunk.