BetterChatX

Each chat tab can be renamed by double-clicking it, and a right-click on a tab asks for a second right-click before it is deleted. Tabs can be reordered by dragging them along the bar, pulled out of the window to become their own floating window, or dragged back into another window to merge. A new tab is added with the plus button. Every chat window can be moved and resized on its own, and a lock option freezes windows in place so they cannot be moved or resized by accident.

Colors and opacity are set in eight configurable slots that cover the tab selection bar, the top bar background, the text, the timestamps, the input bar, and the fade overlay. Each slot has its own color and opacity and uses a full HSB color picker with a live preview, plus a swatch opacity slider and a direct hex code field. Per-tab settings open from the Filters page and combine keyword inclusion and exclusion, message type toggles, and prefix or suffix rules in one panel. The mod is distributed for Forge on Minecraft 1.8.9 only.