Theme Regression Testing

01startup

Startup and default appearance

Confirm the application starts cleanly and presents a coherent theme before changing any settings.

Start under a light system theme and confirm the interface is consistently light. Check the main window, server list, menus, dialogs, input box, channel list, and user list.

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Start under a dark system theme and confirm the interface is consistently dark. Look for white panels, light text on light backgrounds, or controls that retain the wrong appearance.

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Startup completes without a crash, hang, repeated redraw, or persistent theme flash.

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The default theme selection behaves as documented and does not silently force an unrelated theme.

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02switching

Live light and dark switching

Keep the application open while changing the system appearance.

Changing the system from light to dark updates the application without a restart.

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Changing the system from dark to light updates the application without a restart.

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The main window, chat area, channel switcher, user list, input box, menus, and open dialogs update together.

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Repeated theme switching does not cause flicker loops, duplicate refreshes, freezes, or crashes.

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Theme switching remains correct while Preferences or another secondary window is open.

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03components

Interface component sweep

Review normal, hovered, selected, focused, disabled, and unfocused states.

Menubars, menus, menu hover states, and separators are readable and match the active theme.

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Buttons, toggles, combo boxes, spin controls, and disabled controls remain readable.

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Tabs or channel-tree entries clearly show active, inactive, unread, and highlighted states.

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The user list, selections, icons, and away-state colors remain readable.

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Scrollbars, borders, splitters, and resize handles remain visible and functional.

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Server list, channel list, search, raw log, DCC, About, and confirmation dialogs use coherent colors.

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04chat

Chat area and text rendering

Normal chat text and the chat background have good contrast.

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Selected chat text uses a visible foreground and background.

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Links, timestamps, notices, actions, errors, and highlighted messages remain distinguishable.

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Standard and extended IRC colors display without corrupting theme-derived foreground or background colors.

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The unread marker line is visible and retains its configured or theme-derived color.

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Loaded scrollback uses the same readable appearance as newly received messages.

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05input

Input box and text entry

The input box, cursor, selection, and placeholder or empty state follow the active theme.

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Changing the configured font still updates the input box and chat text as expected.

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IRC formatting preview or rendered attributes remain readable in both light and dark themes.

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Spell-check underlines and suggestion menus remain visible and functional.

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Focused and unfocused input states remain clearly distinguishable.

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06preferences

Preferences and persistence

Theme and color changes apply immediately without requiring a restart.

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Closing and reopening Preferences shows the saved selections correctly.

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Theme, appearance mode, fonts, and explicit custom colors survive an application restart.

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Cancel discards uncommitted theme or color changes.

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Applying theme changes does not reset unrelated preferences, window sizes, layouts, or saved networks.

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07custom-colors

Theme-derived and custom colors

Opening the color manager without editing colors does not pin theme-derived colors.

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Editing one color keeps that color custom without silently making every other color custom.

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Unedited colors continue following the active system or selected application theme.

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Resetting colors restores the documented defaults and remains correct after restart.

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Existing or imported color settings remain compatible and do not corrupt theme rendering.

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08theme-management

Theme selection and management

Available user and system themes appear once and are labelled clearly.

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Selecting an installed theme refreshes all relevant interface areas.

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Returning to the system/default option removes the application-specific override.

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A valid supported theme archive imports, appears in the list, applies, and survives restart.

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An invalid or corrupt theme fails cleanly with a useful error and leaves the application usable.

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Removing a user theme returns to a safe default and does not affect system themes.

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09platform

Platform and accessibility checks

The interface remains usable at the tester's normal display scaling.

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Window appearance is correct for the active display session or compositor.

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High-contrast or accessibility appearance settings remain readable when available.

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Tray startup, minimize-to-tray, restore, and notifications still work when supported.

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The installed package type can locate and apply the themes it is expected to access.

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10smoke

General regression smoke test

Connect, disconnect, and reconnect to a network normally.

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Join channels, send messages and actions, and open a private conversation.

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Switch channels, scroll chat, use context menus, and select and copy text.

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Open a link and use chat search without visual or functional regressions.

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Close and reopen the application without losing the saved test-related settings.

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Additional findings Record broader observations, patterns, or problems that do not belong to one checklist item.

Test environment

Startup and default appearance

Live light and dark switching

Interface component sweep

Chat area and text rendering

Input box and text entry

Preferences and persistence

Theme-derived and custom colors

Theme selection and management

Platform and accessibility checks

General regression smoke test

Finish this test run