Description

Actually the gap to calculate the rowHeight is hardcoded to 20 px.
We should make it configurable, to support better different layouts.

What kind of improvement you want to add? (check one with "x", remove the others)

• Minor changes to existing features
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

Other useful information