Filter Apply and Clear buttons are too easy to confuse #2594

Description

Bug description

In the filter toolbar, Apply and Clear are adjacent and visually too similar. It is easy to click Clear when intending to apply a filter.

Expected behavior

The two actions should be visually distinct and separated enough to prevent accidental clicks. Apply should remain the primary action.

Actual behavior

The actions are adjacent and use similar native button styling, with no strong visual distinction between the Clear action and Apply.

Additional context

This is a UI usability bug and is independent of the database server. A proposed fix is prepared in the fix/filter-button-contrast branch of the rajcz/HeidiSQL fork.

HeidiSQL version and OS

Not provided (UI-only issue)

Database server version

Not applicable (UI-only issue)

Reproduction recipe

1. Open a data grid.
2. Open the Filter toolbar.
3. Enter a filter expression.
4. Try to click Apply or Clear.
5. Observe that the adjacent, similarly styled buttons are easy to confuse.

Error/Backtrace